Ideally all files created in 9.2.2 should open fine in versions greater than itself.
Did you happen to have some 3rd party plugin in 9.2.2 which is missing in 10.1 ? That can be one of the reasons for such errors.
Are the files still opening in version 9.2.2? (assuming you still have 9.2.2)
If there are no 3rd party plugins involved you can share the file with us at firstname.lastname@example.org and we can have a look and figure out the cause of the problem.
Thank you for the answer, I will have a look, I'm sure there is no 3rd party plugins as you mentionned. I will send you a file.
I have experienced the very same problem today. All of a sudden I cannot open a 10.1 file with 9.2.2
Not very good for my workflow to have to tackle unexpected stuff like this.
Let me know if you find a solution.
Files of the higher versions cannot be opened in lower versions.
A 10.1 file cannot be opened in 9.2.2. Other way round is possible as was the case in this thread.
If you need to open a file of 10.1 in 9.2.2 you can save the file as an IDML from 10.1 and then open the same in 9.2.2