If you (like me) have an iPadPro with A12Z and work on #OpenUSD, better not install any #ipados18beta on your device.
AR Quick Look behaves like this:
beta1 = tinted surface colours
beta2 = additional render glitches and freezes
beta3 = frozen camera feed or black
Every beta gets worse.
Reported as FB13954256 and FB14166585

