Thank you for reporting the issue. Our investigation revealed that the problem manifests in multiple use cases.
We have fixed the issue in some of the use cases and are currently working on the remaining ones.
Please update your InDesign to the latest version, id 14.0.3 to try out the fix.
We shall update here once we have addressed all the remaining use case
We appreciate your cooperation.
An error occurred while saving the commentSharon Parker Cox commented
I'm using a new MacBook Air with latest InDesign update and having the same problem. I accidentally discovered a "fix" -- make text changes in Overprint Preview mode (View drop-down menu). So far, that is working for me.