The current design of the Wikimedia Commons image upload process seems to have a coding shortcoming when it comes to failed uploads: just now I had a symbol "/" in the Title of my photo and tried to submit it. The error message "None of the uploads were successful" did NOT allow me to correct the problem and re-click the "Submit" button, but cleared all buttons such that the entire process must be re-done from scratch (which requires several steps "Upload," "Release Rights," "Describe" to do before getting back to where the error occurred) .
The submission process should have more resilience than to let one failure crash the entire upload. I don't know how to change the code, but ideally if the submission fails, it should merely be a matter of correcting the problem (removing the invalid character from the Title line) then clicking "Submit" again, NOT having to start over from the beginning (and doing all previous steps that had already been taken care of).
I've also had multiple-image submissions where only one image will fail to upload, and the "Force send" button is next to/left of an un-labeled, small blue button (that had been the "Submit" button). This "button" should be more clearly marked, as well as should allow options to fix the problems and resubmit, not crashing the whole process forcing a restart from the beginning.
My request/task would be to fix the button setup (so all are visible and the proper size) and format of the "Describe" step in the image submission process, allowing mistakes (such as foreign characters) to be simply deleted (fixing the problem) and then re-submitted.
IDEALLY, the "Upload" step of the submission process should allow the image to fully be pushed through to Commons, and the "Describe" step should merely ADD metadata/descriptions to the already-existing files. Previously I've had the system time-out on me such that all the files I had SUBMITTED, were completely lost and unable to attach the DESCRIPTIONS that came 2 steps later in the process. This would help considerably.