Hi Helen, Thank you for trying to help out. The camera backup is using the default directory (device storage/dcim/camera) stored on the phone itself. I do not have an SD card. When using file explorer I see the new (403th) photo in the same directory as the 402 photo's that were already there before I installed btsync. Restarting btsync and restarting the phone do not solve the issue. Is there anything else I can try?