Cannot open Scrivener 3 projects on iOS


I installed Scrivener 3 on my Mac. I synced the projects on iOS bur if I want to open ist I get an error message (see attached file). Has anyone an idea?
iOS app is updated with version from 7.12.


Hi it’s me again. I am not sure Why but it is working now.

The most common cause of this error is incomplete synchronization. Either the project wasn’t completely transferred from the desktop to Dropbox, or the sync between Dropbox and the iOS device failed. The problem can often resolve itself once the pieces of the project have been reunited.