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 commentAnonymous commented
OMG this is awful. It keeps reverting back to saved on any command Z! Come on Adobe!!!!! So sick of it. And why is CC not compatible with older OS now? I had a mid-2011 imac working awesome and then yesterday halfway through the day, I got a team member save a file in newer version and I'm forced to upgrade.