I am finding OneDrive really useless & will stay with using Dropbox in synchronizing/backing up my photos, unless OneDrive designers will change their mind on the issue of renaming pictures as they are being saved into the cameraroll folder.
Thats REALLY BAD and has messed up all my picture folders, before I recognized what's going on. Now I will have to find all those duplicates, I have created by copying pictures from OneDrive to my NAS Picture Folders. The purpose of synchronizing is to have an exact copy of the same file! I just can't understand that anyone sane could think otherwise!
That looks like another example that Microsoft thinks they know better what people need...