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.
-InDesign TeamAnonymous commented
Is there any solution to this problem yet? Have moved over to CC2018 on a Windows 10 platform and having the same problem of text disappearing while editing. Thanks