Collaborative annotation project disappears

[M07ak]

Occasionally, a collaborative project of image annotation but also of classification crashes completely. The URL of the project is still available, but all photos have disappeared, and the source JSON is completely erased. This is the 2nd time it happens to me, on the online version (https://universaldatatool.com/app/, with the associated collaboration server) but also with my self-hosted server.

I can't isolate the problem or force its reproduction. The last time, my client was browsing a large number of photos in the Label tab.

[seveibar]

@M07ak thanks for reporting and sorry for the delay.

This seems like a serious issue, especially if it is occurring for on-premise installations.

The code for the collaboration server is here for people trying to investigate this issue.

Any ideas of what it could be?