Boxcryptor stays blank after start

Doniel

Hello there,

till yesterday everything worked fine. Today I started my PC and now Boxcryptor won't open anymore - well it does, but I can't click any button and the app stays like in the screenshot - blank. When I click the 3 dots in the top right corner nothing happens:

I don't even get the Boxcryptor Icon at the bottom right.

I updated Windows today but uninstalled it again when the Problem occurred - Still the same.
Tried to update .Net Framework - already newest Version.
Tried Uninstall and Install again - Still the same
Tried to Run as Admin - Still the same.
Restarted multiple times (also completely off and then on again) - Still the same.

Someone got that problem or knows what the reason is?

I would LOVE a solution here....

Kind regards

gunleik

I've got the exact same problem today on a newly installed computer. It still work on my old computer, but I'm afraid that some windows update will brake it on the old one too.

I tried running it with debug... there is an event that can indicate that it's related to .NET

Partial error message:

Application: Boxcryptor.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.AccessViolationException
at System.String.wcslen(Char)
at System.String.CtorCharPtr(Char)
at DynamicClass.GetJavascriptFlags(System.Object)

Yasmin

Please install this version here and let us know if it's working:

https://www.dropbox.com/s/lcl093thjj003mq/Boxcryptor_v2.49.1965_Setup.msi?dl=0

gunleik

Thanks for the early release link, but it did not help. I figured it out though... I have the free version that allows two linked devices. I had to log in to the web page and unlink an old device. Then the application worked. It would be much better if the application gave an error message rather then just showing a blank screen.

Florian

Hi gunleik,
Unfortunately, I think this must be a coincidence.

The fact that you saw the sign-in Window (but without the actual sign-in form, only the window background) means that your device was not signed-in or "linked" in the first place.
Also, if you try to sign-in on a 3rd device with a free account, only after providing the user credentials the system can identify you and check how many devices are connected - we definitively do display an appropriate message regarding the device limit if required.

There must be another root cause to the issue.

What else did you do after "unlinking" the old device?
Did you maybe re-install Boxcryptor or delete the settings folder?

Best regards,
Florian

Doniel

Hello there and thanks for the answers! The same time I also wrote an E-Mail to the support and they also replied to me with the now public available release. And it helped!
As an addition, the Problem was most likely caused by CefSharp as stated out by the support since the sign-in is based on CEF and CefSharp got an update that probably indirectly fixed my issue (https://github.com/cefsharp/CefSharp/releases/tag/v94.4.50):

WPF Browser goes blank if used in combination with TabControl should now be fixed (upstream) #2779

Widevine CDM is now automatically downloaded at runtime see https://bitbucket.org/chromiumembedded/cef/issues/3149/alloy-add-component-updater-support-for

WPF the browser stops redrawing when running on Intel Iris Xe Integrated GPU(11th Gen). Intel have released an updated driver, see https://www.intel.com/content/www/us/en/support/articles/000058136/graphics/graphics-for-11th-generation-intel-processors.html See dotnet/wpf#3817 for workaround if you are unable to install the updated driver.

Have a nice weekend!

taxisyndrome

I have an laptop with an AMD Ryzen processor and installing the latest Boxcryptor version doesn't help.

Florian

Hi taxisyndrome,

Sorry to hear that!

We recently spend some time evaluating WebView2 from Microsoft and are quite happy with the first impressions.
If you want, you can try out our experimental Boxcryptor Version using WebView2: https://www.dropbox.com/s/v5fa20mw2xcqx84/Boxcryptor_v2.50.2085_Setup.msi?dl=0

Note that you may have to install the WebView2 Evergreen runtime from here: https://developer.microsoft.com/de-de/microsoft-edge/webview2/

Best regards,
Florian

Geoffw

I believe I have the same problem though the symptoms are different the error messages seem the same.
In my case Boxcryptor works fine, but then just stops after several hours or even a couple of days.
This is happening on 2 W10 pcs both about 5 years old one intel and one AMD.
One is online account and one is local.
Looking at the w10 event log there is a .Net runtime error

Application: Boxcryptor.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: exception code e0000008, exception address 76C3B522

This is followed by a Application Error

Faulting application name: Boxcryptor.exe, version: 2.49.1965.0, time stamp: 0x61657247
Faulting module name: KERNELBASE.dll, version: 10.0.19041.1415, time stamp: 0x2791d798
Exception code: 0xe0000008
Fault offset: 0x0012b522
Faulting process ID: 0x1c08
Faulting application start time: 0x01d7f7116094bc86
Faulting application path: C:\Program Files (x86)\Boxcryptor\Boxcryptor.exe
Faulting module path: C:\WINDOWS\System32\KERNELBASE.dll
Report ID: 06d65b97-4bd1-489c-a96e-6cfe23795823
Faulting package full name:
Faulting package-relative application ID:

I believe that I am running version 4.8.4084.0 of .NET
On one pc I have run >NET repair process and uninstalled and reinstalled Boxcryptor.
I think this may have started with the last W10 2021-12 update.
Sorry to raise this just before Christmas
Geoff