I was uploading about 20 documents at one time. I knew one document was void=the system communicated that (great) So the system said 19 of 20 could be uploaded. 1 of the 19 did not upload. In fact, the systems was still trying to upload that document for over 5 minutes. (Checking again-now-still not uploaded). The document is a pdf. Please advise. (It seems I can continue to work in Beta, even though the system is still thinking about the 1 last document)