Tracks created in Transit Go not copied to Cubase

… created with "Create Empty"and then immediately Ctrl+S to give it a name. Test results are the same when I give the same name as on iPad or not.
Yesterday and today I repeated the test about ten times and every time the created track is invisible on the PC side.
Note 1: Most of the time the program on the PC requires a 48kHz/16bits format before it wants to open a project, but it has also happened that it demanded 44.1kHz.
Note 2: When I create 2 tracks on the iPad, both are invisible on the PC
Note 3: When I create a project on the iPad and sync, log out, log in again on the iPad, then I find that the project is still OK. Which means that the upload to the cloud works fine.
Note 4: When I create 1 track on the iPad and invite my other user id, then all goes well on the PC side.
Note 5: When I create a new project on the PC, then start VST and “Create Project” and sync, then log out from VST. Log in on iPad with same VST account and sync: all goes well.

Thank you for your help and good luck,
Karel