The fix for this issue is now available in the latest update of InDesign – version 16.1
Please update to this version to get the fix. To prevent problem on existing documents and see the footnotes again, you will have to force recompose the stories.
To force recompose stories, you can use the shortcut Command-Option-/ (slash) on Mac or Ctrl-Alt-slash on Windows
An error occurred while saving the commentSevil commented
This bug is not solved! You can see in the screenshot i shared. No 6, 7, and 8 footnotes.