Hope you are doing well.
Thank you for posting your query here. Please help me with few details to understand your issue better.
Try with different files and let us know the behaviour. If all the other files from previous version are working, then this is a file specific issue. In that case you can try below given steps:
For more help refer to: https://www.adobe.com/devnet-docs/acrobat/android/en/
Let us know how it works at your end. If you have any further queries please feel free to reach out to us.
Ver. 21.09.01 fixed it.
It's ok now and view is correct.
21.09.01 (20210922.182534) is correct