The fix for this issue is now available in the latest update of InDesign – that is, InDesign 15.0.2.
Please update your InDesign application to get this fix.
Adobe InDesign team
An error occurred while saving the commentdavid commented
I am having this problem as well. Transitioning from CS5 on a brand new MacBook Pro has been the absolute worst experience. The time lost, the frustration and the complete lack of support is astounding! I pay how much a month for this? According to this thread, the problem has been going on since last year and you guys have not been able to fix it?!?! To add further insult, like rubbing salt and lemon juice to a festering wound, I see the latest post by smiling ADMIN Ravi Kiran, saying it's fixed........ Complete and bold faced lie. I have the latest version and yet, no command Z, No Save as unless it is a brand new file. When can I expect to have a product that works as well as the version I purchased years ago? What kind of compensation and support can I expect?