cloclo No this has nothing to do with iPhone. If TonfotosSync app is starting and works wihtout any errors - then this is definitely not an iPhone fault.
I really have no idea where FullSizeRender.jpg is coming from. This is definitely not from program. Actually, this is just one of the several strange things you are describing. Many users are using TonfotosSync and even more are using Tonfotos for years now. As any program, they have thier issues, and we get regular reports from users about different problems, but no one reproted anything like you are describing.
If you are interested in my theory, I’d rather say this is not the program issue, rather some misunderstaning on your end or you are not telling everything that happened. I don’t know how else to explain file get renamed and other files disappeared even though they are not duplicates. Program does just not do that, but some one did.
In any case, all I want is to help you. I tried to figure out what is the issue with the program, but that does not seem to work, so instead we can change direction and try workarounds:
