The fix for this issue is available in the latest InDesign release 16.2.1
Please update to this latest version of InDesign to get the fix.
Adobe InDesign team
An error occurred while saving the commentSandra commented
Unfortunately, this problem is still not solved in the new update. At the moment I am working on a big job for an important client in Amsterdam. Indesign crashed while I was trying to re-link the document.
After restarting the apps and the computer, all the files (documents) I had shared with the customer showed a black screen. After I logged out of my adobe account, the screen was visible again but all comments had disappeared. Only the version in the browser was still visible.