After the update to the new lightroom version there is a problem with syncing my albums between my different devices. When I edit a collection on my MAC/LrC (delete or transfer images between them) this edit is not transferred to the albums/collections on the mobile devices. On the other hand, if I do the same in the mobile albums/collections, with the next sync they are re-transferred to the version on my Mac / LrC Catalogue.
Edits in photos, however, (i.e. cropping, etc.) get transferred. Also importing pictures on mobile devices and then uploading them to the cloud and then on to the MAC/LrC works.
It's just the collections parameters, which do not get synced.