5 votesdave commented
FYI, this seems to only be happening when using a workspace which carried over from InDesign CC 2018, creating a completely new workspace (not just re-saving the current one) has solved this for my team.
Thank you for your patience all this while.
This issue is now fixed in the latest update (Id 14.0.1) of InDesign CC.
If you are unable to see the update notification yet, open the menu (three dots) from the top-right of Creative Cloud desktop application and click on ‘Check For App Updates’.
Once the update button is shown against InDesign CC, click on the button to update your InDesign to Id 14.0.1 for the fix of the issue.
Do let us know in the comments, if you face any problem with the new update.
List of fixed issues can be found at: helpx.adobe.com/indesign/kb/fixed-issues.html