diff --git a/cmd/Desktop-Bridge/main.go b/cmd/Desktop-Bridge/main.go
index 04decf45..7673f382 100644
--- a/cmd/Desktop-Bridge/main.go
+++ b/cmd/Desktop-Bridge/main.go
@@ -35,9 +35,7 @@ package main
 */
 
 import (
-	"math/rand"
 	"os"
-	"time"
 
 	"github.com/ProtonMail/proton-bridge/internal/app/base"
 	"github.com/ProtonMail/proton-bridge/internal/app/bridge"
@@ -54,14 +52,6 @@ const (
 )
 
 func main() {
-	rand.Seed(time.Now().UnixNano())
-
-	if err := base.MigrateFiles(configName); err != nil {
-		logrus.WithError(err).Warn("Old config files could not be migrated")
-	}
-
-	os.Args = base.StripProcessSerialNumber(os.Args)
-
 	base, err := base.New(
 		appName,
 		appUsage,
diff --git a/cmd/Import-Export/main.go b/cmd/Import-Export/main.go
index 324ed53c..868c55b1 100644
--- a/cmd/Import-Export/main.go
+++ b/cmd/Import-Export/main.go
@@ -18,9 +18,7 @@
 package main
 
 import (
-	"math/rand"
 	"os"
-	"time"
 
 	"github.com/ProtonMail/proton-bridge/internal/app/base"
 	"github.com/ProtonMail/proton-bridge/internal/app/ie"
@@ -37,14 +35,6 @@ const (
 )
 
 func main() {
-	rand.Seed(time.Now().UnixNano())
-
-	if err := base.MigrateFiles(configName); err != nil {
-		logrus.WithError(err).Warn("Old config files could not be migrated")
-	}
-
-	os.Args = base.StripProcessSerialNumber(os.Args)
-
 	base, err := base.New(
 		appName,
 		appUsage,
diff --git a/go.sum b/go.sum
index 0a8ebfe7..4edeb92d 100644
--- a/go.sum
+++ b/go.sum
@@ -344,6 +344,7 @@ golang.org/x/tools v0.0.0-20190420181800-aa740d480789/go.mod h1:LCzVGOaR6xXOjkQ3
 golang.org/x/tools v0.0.0-20190425150028-36563e24a262/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20191216052735-49a3e744a425/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
+golang.org/x/tools v0.0.0-20200117012304-6edc0a871e69 h1:yBHHx+XZqXJBm6Exke3N7V9gnlsyXxoCPEb1yVenjfk=
 golang.org/x/tools v0.0.0-20200117012304-6edc0a871e69/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
diff --git a/internal/app/base/base.go b/internal/app/base/base.go
index 53ec56bb..09724d51 100644
--- a/internal/app/base/base.go
+++ b/internal/app/base/base.go
@@ -29,10 +29,12 @@
 package base
 
 import (
+	"math/rand"
 	"os"
 	"path/filepath"
 	"runtime"
 	"runtime/pprof"
+	"time"
 
 	"github.com/Masterminds/semver/v3"
 	"github.com/ProtonMail/go-autostart"
@@ -91,22 +93,21 @@ func New( // nolint[funlen]
 	cacheVersion string,
 ) (*Base, error) {
 	sentryReporter := sentry.NewReporter(appName, constants.Version)
-
 	crashHandler := crash.NewHandler(
 		sentryReporter.ReportException,
 		crash.ShowErrorNotification(appName),
 	)
 	defer crashHandler.HandlePanic()
 
+	rand.Seed(time.Now().UnixNano())
+	os.Args = StripProcessSerialNumber(os.Args)
+
 	locationsProvider, err := locations.NewDefaultProvider(filepath.Join(constants.VendorName, configName))
 	if err != nil {
 		return nil, err
 	}
 
 	locations := locations.New(locationsProvider, configName)
-	if err := locations.Clean(); err != nil {
-		return nil, err
-	}
 
 	logsPath, err := locations.ProvideLogsPath()
 	if err != nil {
@@ -117,6 +118,14 @@ func New( // nolint[funlen]
 	}
 	crashHandler.AddRecoveryAction(logging.DumpStackTrace(logsPath))
 
+	if err := migrateFiles(configName); err != nil {
+		logrus.WithError(err).Warn("Old config files could not be migrated")
+	}
+
+	if err := locations.Clean(); err != nil {
+		return nil, err
+	}
+
 	settingsPath, err := locations.ProvideSettingsPath()
 	if err != nil {
 		return nil, err
diff --git a/internal/app/base/migration.go b/internal/app/base/migration.go
index e507781e..7280d594 100644
--- a/internal/app/base/migration.go
+++ b/internal/app/base/migration.go
@@ -26,14 +26,14 @@ import (
 	"github.com/sirupsen/logrus"
 )
 
-// MigrateFiles migrates files from their old (pre-refactor) locations to their new locations.
+// migrateFiles migrates files from their old (pre-refactor) locations to their new locations.
 // We can remove this eventually.
 //
 // | entity |               old location                |            new location                |
 // |--------|-------------------------------------------|----------------------------------------|
 // | prefs  | ~/.cache/protonmail/<app>/c11/prefs.json  | ~/.config/protonmail/<app>/prefs.json  |
 // | c11    | ~/.cache/protonmail/<app>/c11             | ~/.cache/protonmail/<app>/cache/c11    |
-func MigrateFiles(configName string) error {
+func migrateFiles(configName string) error {
 	locationsProvider, err := locations.NewDefaultProvider(filepath.Join(constants.VendorName, configName))
 	if err != nil {
 		return err
diff --git a/internal/app/bridge/bridge.go b/internal/app/bridge/bridge.go
index c3b23acc..0d0ed855 100644
--- a/internal/app/bridge/bridge.go
+++ b/internal/app/bridge/bridge.go
@@ -188,6 +188,8 @@ func checkAndHandleUpdate(u types.Updater, f frontend.Frontend, autoUpdate bool)
 		return
 	}
 
+	f.WaitUntilFrontendIsReady()
+
 	// Update links in UI
 	f.SetVersion(version)
 
diff --git a/internal/app/ie/ie.go b/internal/app/ie/ie.go
index 171f6629..47494d27 100644
--- a/internal/app/ie/ie.go
+++ b/internal/app/ie/ie.go
@@ -95,6 +95,8 @@ func checkAndHandleUpdate(u types.Updater, f frontend.Frontend, autoUpdate bool)
 		return
 	}
 
+	f.WaitUntilFrontendIsReady()
+
 	// Update links in UI
 	f.SetVersion(version)
 
diff --git a/internal/frontend/cli-ie/frontend.go b/internal/frontend/cli-ie/frontend.go
index 3ee50e40..90e13c37 100644
--- a/internal/frontend/cli-ie/frontend.go
+++ b/internal/frontend/cli-ie/frontend.go
@@ -230,6 +230,7 @@ func (f *frontendCLI) NotifyManualUpdate(update updater.VersionInfo, canInstall
 	// NOTE: Save the update somewhere so that it can be installed when user chooses "install now".
 }
 
+func (f *frontendCLI) WaitUntilFrontendIsReady()              {}
 func (f *frontendCLI) SetVersion(version updater.VersionInfo) {}
 func (f *frontendCLI) NotifySilentUpdateInstalled()           {}
 func (f *frontendCLI) NotifySilentUpdateError(err error)      {}
diff --git a/internal/frontend/cli/frontend.go b/internal/frontend/cli/frontend.go
index 5e5cf2e5..a0b782ee 100644
--- a/internal/frontend/cli/frontend.go
+++ b/internal/frontend/cli/frontend.go
@@ -257,6 +257,7 @@ func (f *frontendCLI) NotifyManualUpdate(update updater.VersionInfo, canInstall
 	// NOTE: Save the update somewhere so that it can be installed when user chooses "install now".
 }
 
+func (f *frontendCLI) WaitUntilFrontendIsReady()              {}
 func (f *frontendCLI) SetVersion(version updater.VersionInfo) {}
 func (f *frontendCLI) NotifySilentUpdateInstalled()           {}
 func (f *frontendCLI) NotifySilentUpdateError(err error)      {}
diff --git a/internal/frontend/frontend.go b/internal/frontend/frontend.go
index 23511ea7..85c21aa3 100644
--- a/internal/frontend/frontend.go
+++ b/internal/frontend/frontend.go
@@ -45,6 +45,7 @@ type Frontend interface {
 	SetVersion(update updater.VersionInfo)
 	NotifySilentUpdateInstalled()
 	NotifySilentUpdateError(error)
+	WaitUntilFrontendIsReady()
 }
 
 // New returns initialized frontend based on `frontendType`, which can be `cli` or `qt`.
diff --git a/internal/frontend/qml/Gui.qml b/internal/frontend/qml/Gui.qml
index 17f47752..64f9675c 100644
--- a/internal/frontend/qml/Gui.qml
+++ b/internal/frontend/qml/Gui.qml
@@ -327,6 +327,8 @@ Item {
         go.failedAutostart        = qsTr("Unable to configure automatic start."                           , "notification", -1)
         go.genericErrSeeLogs      = qsTr("An error happened during procedure. See logs for more details." , "notification", -1)
 
+        go.guiIsReady()
+
         // start window
         gui.openMainWindow(false)
         if (go.isShownOnStart) {
diff --git a/internal/frontend/qml/GuiIE.qml b/internal/frontend/qml/GuiIE.qml
index a35cceb2..dee84052 100644
--- a/internal/frontend/qml/GuiIE.qml
+++ b/internal/frontend/qml/GuiIE.qml
@@ -432,6 +432,9 @@ Item {
         go.bugNotSent             = qsTr("Unable to submit bug report."                                  , "notification", -1)
         go.bugReportSent          = qsTr("Bug report successfully sent."                                 , "notification", -1)
 
+
+        go.guiIsReady()
+
         gui.allMonths = getMonthList(1,12)
         gui.allMonthsChanged()
     }
diff --git a/internal/frontend/qml/tst_Gui.qml b/internal/frontend/qml/tst_Gui.qml
index b1435989..0eee3997 100644
--- a/internal/frontend/qml/tst_Gui.qml
+++ b/internal/frontend/qml/tst_Gui.qml
@@ -360,6 +360,7 @@ Window {
 
         signal updateFinished(bool hasError)
 
+        signal guiIsReady()
 
         signal  showOutgoingNoEncPopup(string subject)
         signal  setOutgoingNoEncPopupCoord(real x, real y)
diff --git a/internal/frontend/qml/tst_GuiIE.qml b/internal/frontend/qml/tst_GuiIE.qml
index e7bb8494..854084f1 100644
--- a/internal/frontend/qml/tst_GuiIE.qml
+++ b/internal/frontend/qml/tst_GuiIE.qml
@@ -918,6 +918,8 @@ Window {
         signal notifyUpdate()
         signal updateFinished(bool hasError)
 
+        signal guiIsReady()
+
         signal openReleaseNotesExternally()
 
         signal notifyLogout(string accname)
diff --git a/internal/frontend/qt-ie/frontend.go b/internal/frontend/qt-ie/frontend.go
index e84a9c18..39b9ed8b 100644
--- a/internal/frontend/qt-ie/frontend.go
+++ b/internal/frontend/qt-ie/frontend.go
@@ -22,6 +22,7 @@ package qtie
 import (
 	"errors"
 	"os"
+	"sync"
 
 	"github.com/ProtonMail/proton-bridge/internal/config/settings"
 	"github.com/ProtonMail/proton-bridge/internal/events"
@@ -76,6 +77,9 @@ type FrontendQt struct {
 
 	// saving most up-to-date update info to install it manually
 	updateInfo updater.VersionInfo
+
+	initializing       sync.WaitGroup
+	initializationDone sync.Once
 }
 
 // New is constructor for Import-Export Qt-Go interface
@@ -102,6 +106,10 @@ func New(
 		restarter:      restarter,
 	}
 
+	// Initializing.Done is only called sync.Once. Please keep the increment
+	// set to 1
+	f.initializing.Add(1)
+
 	log.Debugf("New Qt frontend: %p", f)
 	return f
 }
@@ -541,3 +549,14 @@ func (f *FrontendQt) createLabelOrFolder(email, name, color string, isLabel bool
 	}
 	return true
 }
+
+func (f *FrontendQt) WaitUntilFrontendIsReady() {
+	f.initializing.Wait()
+}
+
+// setGUIIsReady unlocks the WaitUntilFrontendIsReady.
+func (f *FrontendQt) setGUIIsReady() {
+	f.initializationDone.Do(func() {
+		f.initializing.Done()
+	})
+}
diff --git a/internal/frontend/qt-ie/frontend_nogui.go b/internal/frontend/qt-ie/frontend_nogui.go
index 0397deba..b144f8ce 100644
--- a/internal/frontend/qt-ie/frontend_nogui.go
+++ b/internal/frontend/qt-ie/frontend_nogui.go
@@ -50,6 +50,9 @@ func (s *FrontendHeadless) NotifyManualUpdate(update updater.VersionInfo, canIns
 func (s *FrontendHeadless) SetVersion(update updater.VersionInfo) {
 }
 
+func (s *FrontendHeadless) WaitUntilFrontendIsReady() {
+}
+
 func (s *FrontendHeadless) NotifySilentUpdateInstalled() {
 }
 
diff --git a/internal/frontend/qt-ie/ui.go b/internal/frontend/qt-ie/ui.go
index 50d5d655..b5c42d01 100644
--- a/internal/frontend/qt-ie/ui.go
+++ b/internal/frontend/qt-ie/ui.go
@@ -67,6 +67,7 @@ type GoQMLInterface struct {
 	_ func() `slot:"checkAndOpenReleaseNotes"`
 	_ func() `signal:"openReleaseNotesExternally"`
 	_ func() `slot:"startManualUpdate"`
+	_ func() `slot:"guiIsReady"`
 
 	// translations
 	_ string `property:"wrongCredentials"`
@@ -201,6 +202,8 @@ func (s *GoQMLInterface) SetFrontend(f *FrontendQt) {
 	s.ConnectStartExport(f.StartExport)
 	s.ConnectStartImport(f.StartImport)
 
+	s.ConnectGuiIsReady(f.setGUIIsReady)
+
 	s.ConnectCheckPathStatus(CheckPathStatus)
 
 	s.ConnectEmitEvent(f.emitEvent)
diff --git a/internal/frontend/qt/frontend.go b/internal/frontend/qt/frontend.go
index ca9d8767..4eff24be 100644
--- a/internal/frontend/qt/frontend.go
+++ b/internal/frontend/qt/frontend.go
@@ -97,6 +97,9 @@ type FrontendQt struct {
 
 	// saving most up-to-date update info to install it manually
 	updateInfo updater.VersionInfo
+
+	initializing       sync.WaitGroup
+	initializationDone sync.Once
 }
 
 // New returns a new Qt frontend for the bridge.
@@ -132,6 +135,10 @@ func New(
 		restarter:         restarter,
 	}
 
+	// Initializing.Done is only called sync.Once. Please keep the increment
+	// set to 1
+	tmp.initializing.Add(1)
+
 	// Nicer string for OS.
 	currentOS := core.QSysInfo_PrettyProductName()
 	bridge.SetCurrentOS(currentOS)
@@ -180,6 +187,8 @@ func (s *FrontendQt) NotifySilentUpdateError(err error) {
 }
 
 func (s *FrontendQt) watchEvents() {
+	s.WaitUntilFrontendIsReady()
+
 	errorCh := s.getEventChannel(events.ErrorEvent)
 	credentialsErrorCh := s.getEventChannel(events.CredentialsErrorEvent)
 	outgoingNoEncCh := s.getEventChannel(events.OutgoingNoEncEvent)
@@ -683,3 +692,14 @@ func (s *FrontendQt) startManualUpdate() {
 		}
 	}()
 }
+
+func (s *FrontendQt) WaitUntilFrontendIsReady() {
+	s.initializing.Wait()
+}
+
+// setGUIIsReady unlocks the WaitFrontendIsReady.
+func (s *FrontendQt) setGUIIsReady() {
+	s.initializationDone.Do(func() {
+		s.initializing.Done()
+	})
+}
diff --git a/internal/frontend/qt/frontend_nogui.go b/internal/frontend/qt/frontend_nogui.go
index 93ea4549..c3125e21 100644
--- a/internal/frontend/qt/frontend_nogui.go
+++ b/internal/frontend/qt/frontend_nogui.go
@@ -48,6 +48,9 @@ func (s *FrontendHeadless) NotifyManualUpdate(update updater.VersionInfo, canIns
 	// NOTE: Save the update somewhere so that it can be installed when user chooses "install now".
 }
 
+func (s *FrontendHeadless) WaitUntilFrontendIsReady() {
+}
+
 func (s *FrontendHeadless) SetVersion(update updater.VersionInfo) {
 }
 
diff --git a/internal/frontend/qt/ui.go b/internal/frontend/qt/ui.go
index a71ee8a8..80fe657a 100644
--- a/internal/frontend/qt/ui.go
+++ b/internal/frontend/qt/ui.go
@@ -25,7 +25,7 @@ import (
 	"github.com/therecipe/qt/core"
 )
 
-// Interface between go and qml.
+// GoQMLInterface between go and qml.
 //
 // Here we implement all the signals / methods.
 type GoQMLInterface struct {
@@ -64,6 +64,7 @@ type GoQMLInterface struct {
 	_ func() `slot:"checkAndOpenReleaseNotes"`
 	_ func() `signal:"openReleaseNotesExternally"`
 	_ func() `slot:"startManualUpdate"`
+	_ func() `slot:"guiIsReady"`
 
 	// Translations.
 	_ string `property:"wrongCredentials"`
@@ -170,6 +171,7 @@ func (s *GoQMLInterface) SetFrontend(f *FrontendQt) {
 	s.ConnectClearKeychain(f.clearKeychain)
 	s.ConnectOpenLicenseFile(f.openLicenseFile)
 	s.ConnectStartManualUpdate(f.startManualUpdate)
+	s.ConnectGuiIsReady(f.setGUIIsReady)
 	s.ConnectGetLocalVersionInfo(f.getLocalVersionInfo)
 	s.ConnectCheckForUpdates(f.checkForUpdates)
 	s.ConnectGetIMAPPort(f.getIMAPPort)
diff --git a/internal/logging/logging.go b/internal/logging/logging.go
index 27f97324..96796d5e 100644
--- a/internal/logging/logging.go
+++ b/internal/logging/logging.go
@@ -45,6 +45,14 @@ func Init(logsPath string) error {
 		FullTimestamp:   true,
 		TimestampFormat: time.StampMilli,
 	})
+	logrus.AddHook(&writer.Hook{
+		Writer: os.Stderr,
+		LogLevels: []logrus.Level{
+			logrus.PanicLevel,
+			logrus.FatalLevel,
+			logrus.ErrorLevel,
+		},
+	})
 
 	rotator, err := NewRotator(MaxLogSize, func() (io.WriteCloser, error) {
 		if err := clearLogs(logsPath, MaxLogs); err != nil {
@@ -58,16 +66,6 @@ func Init(logsPath string) error {
 	}
 
 	logrus.SetOutput(rotator)
-
-	logrus.AddHook(&writer.Hook{
-		Writer: os.Stderr,
-		LogLevels: []logrus.Level{
-			logrus.PanicLevel,
-			logrus.FatalLevel,
-			logrus.ErrorLevel,
-		},
-	})
-
 	return nil
 }
 
@@ -77,6 +75,9 @@ func SetLevel(level string) {
 	}
 
 	if logrus.GetLevel() == logrus.DebugLevel || logrus.GetLevel() == logrus.TraceLevel {
+		// The hook to print panic, fatal and error to stderr is always
+		// added. We want to avoid log duplicates by replacing all hooks
+		_ = logrus.StandardLogger().ReplaceHooks(logrus.LevelHooks{})
 		logrus.SetOutput(os.Stderr)
 	}
 }