Hey Pentixel,
Thanks for checking it out. Looks like you've been busy since Rogue Robotics!
I think this might be a web-only bug. I'll see what I can do.
Ty for reporting.
Edit:
I think this will fix itself when Godot 4.3 comes out. The Pull Request that fixes SharedArrayBuffer was merged in Jan.
I'll still see if there's anything I can do in the meantime.