File Corruption Issue in InDesign 21.2 on Windows 11

I have experienced the same issue over and over again. The only thing that seems to work is exporting te project to an IDML, open it, and save as a new project file. Hope this works

To add something extra: I did not have the problem with my spreads, but with all my files, even the single pages, small file sizes (3-4 mb). And all of it.

I have the exact same problem since last week! Every file I open will damage and after that it only gives errors and closes down. With the exact same screens as you show. I can't find the sollution either. I need to get some things done, but it turns out to be impossable.

I have tried everything…..Got even rid of the old files, past the design in a complete new file, save it, and whoppa the same error comes around. 

The screenshots you show don’t seem to point to a bug. The first thing about spread does make sense. The second things is popped by a script error. Have you any 3rd party scripts installed? If so remove it, the code is not right. The script has to be run in a persistent engine which it is not and hence the error

Is Windows fully updated including the latest optional updates?