⚠️ Before submitting, please verify the following: ⚠️

• This is a bug, not a question or a configuration issue.
• This issue is not already reported on Github (I've searched it).
• Nextcloud Server and Desktop Client are up to date. See Server Maintenance and Release Schedule and Desktop Releases for supported versions.
• I agree to follow Nextcloud's Code of Conduct

Bug description

Hi,

similar the issue addressed here:
#8217 and here:
#7135

The issue is that the gui window remains transparent. Sometimes this changes, when I restart it several times or when i start it from the terminal but not always. I am on debian sid and use the newest appimage from the website.
these are the logs when i start it from the terminal:

Failed to initialize instances shared memory: "QSharedMemory::handle: doesn't exist"
nextcloud.gui.application: Migrating old config from "/home/jayjag/.local/share/Nextcloud" to "/home/jayjag/.config/Nextcloud"
nextcloud.gui.application: Failed to move the old config directory to its new location ( "/home/jayjag/.local/share/Nextcloud" to "/home/jayjag/.config/Nextcloud" )
nextcloud.gui.application: Will move the individual files QList("Nextcloud_sync.log", "Nextcloud_sync.log.1")
nextcloud.gui.application: Fallback move of "Nextcloud_sync.log" also failed
nextcloud.gui.application: Fallback move of "Nextcloud_sync.log.1" also failed

Any ideas?
Cheers
Justus

Steps to reproduce

double click on Nextcloud-3.17.1-x86_64.AppImage or in the terminal ./Nextcloud-3.17.1-x86_64.AppImage

Expected behavior

it should open the GUI

Which files are affected by this bug

Nextcloud-3.17.1-x86_64.AppImage

Operating system

Linux

Which version of the operating system you are running.

Debian sid

Package

Official Linux AppImage

Nextcloud Server version

Nextcloud AIO v11.6.0

Nextcloud Desktop Client version

3.17.1

Is this bug present after an update or on a fresh install?

Fresh desktop client install

Are you using the Nextcloud Server Encryption module?

Encryption is Enabled

Are you using an external user-backend?

• Default internal user-backend
• LDAP/ Active Directory
• SSO - SAML
• Other

Nextcloud Server logs

Additional info

__nextcloud_client_buildinfo.txt
__nextcloud_client_parameters.txt