This is a problem with customized Bible Reading Plan layouts ONLY if you see something like the Reading Plan tab below i.e. where the actual Plan is not shown and you get a Sync message.
It will create an Untitled Plan in the Docs menu and Dashboard.
If you close the above tab, the actual Plan will be deleted.
Fortunately the FIX is to restore the layout to Default (in Logos v.40 and 41) and re-customize it.
To complete the restoration:
- delete any Untitled Reading Plan in Docs
- recover any deleted Plans from MyDocuments.
Applies to MacOS and Windows.