Bug: [Linux flatpak] Alt key capture after Alt-Tab

Behaviour: Program state is as if Alt has been pressed after task switching back from another application. Yellow boxes indicating available commands are all visible. Need to click once somewhere in the interface or press Alt again, otherwise any further keystrokes are taken as command input.
To replicate: Open any OnlyOffice document. Use Alt-Tab to switch away to another application. Use Alt-Tab again to switch back to OnlyOffice. Observe that OO has captured an Alt press and is waiting for additional letters to be typed for command input.

Note: this only applies when switching between OO and another different application. It does not occur when switching between OO windows. I suspect this may have something to do with how a flatpak app interacts with the operating system.

Version information: Desktop editors 9.0.4.50 (flatpak) on Fedora Linux 42 (KDE Plasma with Wayland).

Hello @linuxkangaroo
I’ve tried to reproduce it on my Fedora PC, but without success. Could you please try to reinstall the app and confirm that the issue still persists?

Ok I have uninstalled the flatpak, cleared application data, and reinstalled. The behaviour still occurs - no change.

Thank you, we’re checking the situation.

Hello,
Please install the Neofetch/Fastfetch app and show us their output results (they are system information tools).
Also, could you please check this behavior on the RPM installation? Installing ONLYOFFICE Desktop Editors on Red Hat, CentOS and derivatives

I am also facing this bug using the flatpak version.
To replicate the issue, open up a browser and open up OO and try switching between windows.

It mostly happens that way and I normally use my browser hand in hand with OO for content writing and other document tasks.

1 Like

I just made some tests and it seems it doesn’t only happen with the browser, it occurs with all other open windows when switching between them.

1 Like

Dear @linuxkangaroo
Thank you for the provided data, we’re looking into it.
@JaYMaN thank you for your report!

I have uninstalled the Flatpak and installed Desktop Editors from the repo (RPM).

I can confirm the same behaviour occurs with the RPM, just like the Flatpak - no difference.

Dear @JaYMaN
Please let us know your OS version and provide us with Neofetch/Fastfetch output result as well.

I have uninstalled the Flatpak and installed Desktop Editors from the repo (RPM).
I can confirm the same behaviour occurs with the RPM, just like the Flatpak - no difference.

@linuxkangaroo, understood, we’re working on it.

This is affirmative. The RPM, AppImage and Flatpak all give the same issues.

I have attached results from fastfetch. I am running on Fedora 42 and KDE Plasma 6.4.5

1 Like

Interesting that we’re on the same distro and desktop environment. Could be something specific to an interaction with KDE. I guess they’ll figure it out.

Thank you all, we’re checking the situation.

Hello
Same -boring- thing here with Kubuntu 25.10 and OO 9.1.0173 via SNAP

Thank you everyone for the provided data, we have found a bug in the described scenario. We have started working on it.
Temporal workaround solution is disabling “Use Alt key to navigate the user interface using the keyboard” parameter in the editor’s advanced settings.

2 Likes