Synchronizing doesn't work

[Ipickedausername]

Hello,

Since I'm using QField never really had great results with QField Sync. I had to make a handmade synchronization with graphical modeler. But I would like to make it work.

Currently, I create a project on QGIS, then I create package with cable and copy it on the phone (the solution with QFIELD Cloud create errors in fields expressions).
There are few offline layers, used to get data on the field.

When synchronizing, I'm expecting the new data is supposed to be synchronized with the one on QGIS. The number of entities changes for a few seconds, then everything goes back to the start, like I didn't synchronize. But QField Sync specify that the data have already been synchronized (you can see on the video, the number of entities on DATA_PT changes from 732 to 821, and then go back to 732).

And when synchronizing from an empty project, you can see everything is loaded, but goes back to an empty project.

I tested with different versions of the same project, on different versions of QGIS, QField and QField Sync. I'll check with a new and simpler project.

Here are the 2 videos :

https://user-images.githubusercontent.com/72577399/171813626-6b07469e-1d1c-4192-b881-cedc084cbc68.mp4

https://user-images.githubusercontent.com/72577399/171813884-c5307381-ab89-42ae-9814-6e4f1c23dac1.mp4