Popovers show as blank rectangles
Since the latest update of the org.gnome.Platform//master
flatpak runtime (commit 9ba38a5dbf5e1f9f13b14547f6ad9e415b283f7683c1e3a0953a7785a932eae2
), apps depending on that runtime have popovers that appear as blank rectangles:
This is an example of a GtkMenuButton in the nightly version of Fractal, but it's also visible in the GTK4 Demo and the widget factory, although not for every menu.
Note that interactions with the popover seem to work fine because clicking in the proper spot triggers the proper action.
The previous commit (2ff966055049abc0bfad769be6b4c0d65451ba686c6cda423becaf464ca33b80
) doesn't have this issue.
This is on Fedora 36 Silverblue x86_64.
Edited by Kévin Commaille