I had the same problem from 2.5.2 to 3.2.0 and after synchronizing the Touch. I then noticed that I had plenty of empty collections.
As I saved the image of μSD card before update, I returned to version 2.5.2
I checked if there were empty shelves and I deleted them. I updated to version 3.2.0 and I have not synced the Touch.
I checked, all is there, no empty collections, and everything works correctly.
(Google translation from French)
Jacques
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