Uploading only those files which don't already exist, skipping all those which already exist
I'm surprised such a basic feature is not implemented. I try to upload a batch of photos but some fail or PC crashes whatever, I reupload the batch and only want to keep only those which didn't upload. There's no simple option to upload the non-existing files; I have click on each 'X' manually and that is just bad design.
This is such a simple and basic thing, why is this not implemented?
Not to mention the files fail to upload for no reason and I think further uploads stop unless you tell it what to do with the failed files and it wastes a lot of time, I can't just stop what I'm doing every 2 minutes to look if a file failed and retry (I have to -_-)
Seriously, please provide these BASIC features :/