Unable to import a document. Upload changes to Retry. "No more requests within...." keeps growing

Unable to use the import feature since this afternoon. The Upload button changes to Retry and nothing happens. Status message says "Uploading your documents... (100%)". If I press retry, I get various messages about not putting in more request than X in Y time...
This is ANNOYING.

Looks like things are back to normal.... after a very long while...

It is also annoying that a retry request is also a request and thus extends your "cooldown" time. Come on....