All of my smart searched have been duplicated since installing Suitcase 7 and choosing to sync my fonts yesterday.
You will see duplicate Smart Searches if you previously had Smart Searches with the same name in multiple libraries (or Smart Searches with the same name on multiple computers).
We had to allow this due to the previous limitation of only being able to create a Smart Search in a particular library. It was either attempt to merge Smart Searches (which would have been problematic and would have resulted in duplicate named searches anyway) or drop any duplicate Smart Searches which didn’t sound right either.
If you remove the duplicates and both machines replicate you shouldn’t see that again.
Sorry for the confusion and thanks for using Suitcase Fusion 7!