Unable to Upload Training Documents

When attempting to upload a document after selecting edit on a YPT training, the upload does not process. The file selection box will open and I can select a file but nothing happens after that. I have tried multiple file types, and get the same for all of them.

I verified that this is not working, I will let TT Admins know however it is a little used feature so honestly not sure how quickly it will be looked into, sometimes if it is simple then it will be fixed quickly but if it requires more effort I would imagine it will not be a high priority.