Can't write file IOS 11

[victorgrant]

Hello,

My primary tablet (Ipad Pro) was updated to 11.
Since then I cannot write out a video from a project file.
It makes it half way and hangs. Plenty of memory and space on the Ipad.
I archived the project, sent it to Icloud drive,
downloaded it on my Iphone 7 Plus (not upgraded to 11) and it operates normally, no issues.

Any help will be apprecited.

I didn't find the right solution from the Internet.

References:
forums.luma-touch.com/viewtopic.php?t=5868
Animated Device Explainer Video

Thank you.