Tried to create a smart group of anything created in the last month, and dragged that into the Sync group. Doesn’t work, but it should. Smart groups need to be able to work in the Sync group, otherwise the whole idea of a separate group (instead of new attributes of groups, or sync tags) doesn’t make sense.
Smart groups don’t hold content as such, and are not currently seen in synch.
As suggested/discussed in other threads, Smart Group synching isn’t supported (yet).
Thanks and noted - we will review for a future enhancement if possible.