Uploading stopping after 80-ish photos uploaded

[nedich]

I'd got something like 900 photos for uploading. Uploader started to upload, reached ~70 and was staying still not uploading anymore. Tried stop/start wifi - didn't help. Killed the app. Started it. All thumbnails were gone. The app started empty cycling on the same photo at 0%. The same it couldn't upload last time. Killed it again. The whole UI was empty (no photos shown) but still saying that it was uploading the same photo. Restarted the phone. It started to upload, reached 118 and stopped again. And everything repeated. Tried to send feedback from phone but button did nothing. It used to flash as having been pressed but no mail client launched. Restarted again, this time uploaded 82 photos until the problem

using Flickr Uplolader 2.3.2 on slimrom 4.4.4 on samsung s2