USDZ Export fails to properly open on iOS.

[martin.susmelj]

After last updates an USDZ export file fails to open properly.

First it stars flashing and when the file loads it is static (see video attached).

Old USDZ files open properly, only newly exported fail to load as they should.

[fuereder_david]

I have the same problem ...

[Swetha_prasath2017]

model is not showing at all, just the grey screen, 

[nathanHJVVE]

I have the same problem, but mine wont even let me zoom out to see the full model