[BUG] Upload manager stopping working

[EddyLB]

While uploading a series of photos, the app can sometimes stop uploading them while the upload queue is displayed and the idle timer is disabled (to avert system sleep). The only solution for restarting the upload manager consists in killing and relaunching the app.

After some investigations, I have realised that the system tries to launch an upload background task while the app is active. By doing so, it continues to perform some uploads up to a point where it stops because it reaches the amount of MB that a background task can upload in a row.

This bug was reported to Apple and may never be resolved.