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 commentMarc van Gijn commented
Just joined. Don't see a quote button, but the method member Christophe wrote on januari 4th 2020 worked for me. Because he wrote it in french, here's a translation to get share for review going;
1. Close InDesign.
2. Open Creative Cloud Desktop (CCD) and sign out.
3. Launch InDesign and sign in here (not from CCD).
4. Create a new document in InDesign.
5. Open the Share for Review panel.