RawTherapee without usable interface (no text/fonts)

On my Debian testing installation, Rawtherapee - no matter whether installed from Debian’s package repository, as the stable AppImage or as the nightly development Appimage, renders as follows:

…i.e. as a blank interface without any text. Could this be caused by a missing font?

Hello, have a look in Preferences, tab General, Default font and try to choose another font – if you can see anything at all there!

I have never seen this problem for other users with RawTherapee.

This is the font configuration in .config/RawTherapee/options:

FontFamily=default
FontSize=10
CPFontFamily=default
CPFontSize=8

I don’t think this is the problem.

Temporarily removing RawTherapee’s config files doesn’t solve the problem either.

Could it be a problem caused by Wayland and Nvidia’s driver 580.105? The issue occurred after Gnome 59 forced me to switch from X11 to Wayland.

Update: It’s definitely a Wayland problem. I just logged into an X11/Xorg session on the same system (with the same Nvidia drivers etc.etc.), and RawTherapee worked as it should.

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