Not the same issue - he mentions that his minecraft crashes at launch - mine does not, it just runs in desktop mode rather than VR mode. I am also not running windows 10 beta mode.
gotta say I'm even more disappointed in Mojang than when I opened this originally - y'all didn't even fully read the ticket before resolving it and stacking it on the pile.
seems problem was a registry error due to steamvr having a registry entry with the same name as one required by oculus vr - far as I can tell, this is not my area of expertise.
I edited the steamvr registry entry to point to oculus vr, and all works, but now I have to do that registry change every time I want to swap back and forth between oculus minecraft and any game I want to play on steam.
registry entry in question:
Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Khronos\OpenXR\1
"ActiveRuntime" "REG_SZ" "G:\Steam\steamapps\common\SteamVR\steamxr_win64.json"
minecraft works when this entry is edited to be:
"ActiveRuntime" "REG_SZ" "C:\Program Files\Oculus\Support\oculus-runtime\oculus_openxr_64.json"