XWayland: crash when running BAR

Just before the game loads on BAR (Beyond All Reason) I get a crash on XWayland and sway 1.6.1. After that it enters some corrupt state where some graphical applications won't load.

The issue happens on both a fresh manjaro installation and a recent system upgrade (it worked before the upgrade).

We did some debugging with engine devs and no obvious culprit was found, using either llvmpipe or radeonsi renderer gives same result.

Output on game stdout:

XIO:  fatal IO error 2 (No such file or directory) on X server ":0"
      after 14464 requests (4826 known processed) with 199 events remaining.
terminate called without an active exception

glxinfo: https://gist.github.com/badosu/2b68387fb4e5db7de3a729fcd9797a16 dump in journalctl: https://gist.github.com/badosu/475c414976933855f62018baf8dd8393 upgrade logs: https://gist.github.com/badosu/bbd3e69d178cc5e4467756b25c429244

The only way I know how to reproduce is to have a fresh install of manjaro-xfce, install sway, install BAR and run it.

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