Collections are suddenly gone in DK

Hello,


I recently recovered from backup and as part of that I recovered my DK 
settings, collections, .db files, etc.


All that seemed to work just fine for several days.


Now suddenly, when I start DK my collections seem to be gone.

This scares me a bit as my collections are quite big. And especially one 
of them is more than a decade old and I have put a huge amount of time 
into it.

When I look at the db files for DK, they do not seem to have reduced 
dramatically in size. For example, the thumbnails.db is still tens of GB 
in size. So I do not think everything has been purged. But what would 
cause it to suddenly not show up in the UI?

How do I get my collections back in DK?


In DK settings, these are my collections:

(names and PII redacted for privacy)




When I go to Albums module, I only see the Pictures-local album.



Note, the network volumes /are mounted/ on the specified paths.