Synchronization via QFieldCloud Plugin in QGIS unsuccessful. (Jumps vom 0% to 100%, Transfer finished)

[Notramus]

When synchronizing my project through the QFieldCloud Plugin in QGIS some files are not downloaded properly. I choose "Prefer Cloud" and the file(s) jump from 0% to 100%. Afterwards I get the message "4 file(s) succeeded. Transfer finished" but no up to date file was downloaded. Downloading and replacing the files manually through the Cloud can circumvent this problem.

Steps to reproduce the behavior:

Click on "Synchronize current cloud project"
Click on "Prefer Cloud"
Click on "Perfom Actions"
This problem occurs at random, sometimes for several hours and disappears again.

Expected behavior
Successful download of the project or error message if download was not successful.

Observed behavior
After synchronization QFieldCloud Plugin states that the transfer was successful, but in reality it was not.

QGIS

OS: Windows 11
QGIS Version: 3.34.10
QFieldSync Version: 4.10.1

Additional information
Problem started happening recently, didn't happen in an older version of QField: No - Problem happens (seemingly) at random using different computers and project. Self-hosted as well as using qfield.cloud
Problem can be reliably reproduced, doesn't happen randomly: [No]
Problem happens with all files and projects, not only some files or projects: [Yes]