When using the new Upload Wizard, the automatic step of checking "bad file names" occures.
This checking step was before at the step/tab "Describe", and is now at the step/tab "Upload".
I get the message « bad-prefix : IMG_5389.jpg » each time. (screenshot : https://i.snag.gy/IDBUpO.jpg )
Before, it was possible to change the name of the file in the text fields, now that this checking is in the first upload step, they're is no other possibility than cancel, change the file name on computer, and restart the upload.
This error obviously doesn't appears with the old upload form, and neither with a file already changed to "correctname.jpg".
I am using the french Upload Wizard (and I have another issue trying with english language selected).