We've just released InDesign 17.2.1 version which addresses this issue.
Please update to this latest version using Creative Cloud Desktop application.
In case the fix does not work immediately for you, please try the following:
1) Quit InDesign.
2) Delete the following:
Relaunch InDesign & see if it works properly now.
An error occurred while saving the commentAngela Manente commented
I have deleted InDesign version 17.2.1 and reinstalled version 16.4 which previously had all the fonts but that did not bring back the fonts. Uninstalled 16.4 and reinstalled 17.2.1 cleared my font case and still no fonts...
What other options do I have ???