The issue has been fixed in the latest release of InDesign – InDesign 2021.
Please update to this new version of InDesign to get the fix.
Adobe InDesign team
55 votes18 comments · Adobe InDesign: Feature Requests » Share for Review · Flag idea as inappropriate… · Admin →
An error occurred while saving the commentDave Cochrane commented
Being able to share ONLY a selected block of text for review would be an enormous time saver. I work for a university and asking staff to trawl through an entire prospectus to find their own section to edit every time makes Share for Review quite laborious.