Anki 2.1.50 Beta 1 & 2

I’ve yet another problem. After running install.sh as normal and running the above command, I try running anki, and it gives me this:

pinnerup@ergi:~/Downloads/anki/anki-2.1.50-linux-qt6$ anki
Anki starting...
Initial setup...
Running with temporary Qt5 compatibility shims.
Run with DISABLE_QT5_COMPAT=1 to confirm compatibility with Qt6.
Preparing to run...
xkbcommon: ERROR: Couldn't process include statement for 'dk(polytonic)'
xkbcommon: ERROR: Abandoning symbols file "(unnamed)"
xkbcommon: ERROR: Failed to compile xkb_symbols
xkbcommon: ERROR: Failed to compile keymap
[5102:5141:1205/015317.044127:FATAL:xkb_keyboard_layout_engine.cc(640)] Keymap file failed to load: dk-polytonic
Trace/breakpoint trap (core dumped)

EDIT: The error only appears with the Qt6 version. The Qt5 version runs as expected.