Mobility not syncing cabinet folders

Running Mobility Sles 15 SP4  Version: 18.4.2 Build: 987

Groupwise 2018 18.4.1 Build 140419 

Have a user who's cabinet folders do not appear on device (no folders shown) 
Under the Folder List for the user in mobility I see all the Cabinet folders (granted, there are alot). Some have 0 pending items, some have # in pending items, but for these, it shows 0 synced items.

Had user create a new folder under cabinet, doesn't sync. Created two test folders under mailbox, doesn't sync   - even though folders do show in mobility.
I have run multiple gw checks, a structural rebuild on the account, have removed the user entirely from mobility and readded..doesn't make a difference.

She indicated another colleague doesn't have anything displaying under cabinet on device either - checked this user as well in Mobility and I see them in the Folder List and all the cabinet folders (again there are alot). I haven't yet confirmed with that user however. 

Any other suggestion? Other thing I can think of , if there some sort of limitation to how many folders Mobility will sync? I understand that GMS will only display x number of days in these folders (for us its 30 days ) but it should still populate the folders, or at the very least the folders with recent (30 days or less) emails?

TIA.