The fix for this issue is available in the latest InDesign release 16.2.1
Please update to this latest version to get the fix.
Adobe InDesign team
An error occurred while saving the commentPKonig commented
Same here, Texttools are missing. I have the latest version of Indesign and also tried to logout and sign in again. Funny is also that when I send the link to a friend there the Texttool is still there... But I so can't do the corrections in Indesign because I can't see the changes what are made with that tool.