Since IOS update 15.6.1 Acrobat will not remain open. Crashes within seconds of opening. Literally unusable.
I hope you are doing well. I am sorry for the trouble.
Have you checked to remove unwanted data from the application to check if it works?
Also, would you mind sharing a screen recording of the workflow for better understanding of the issue?
If this is related to a specific instance, can you try remove all other applications from the app switcher and then check if it runs fine.
Looking forward to hearing from you.