This sometimes occurs when I submit an AppleScript app with SD Notary:
After the upload is complete and some time has passed, SD Notary reports that no UUID was returned by Apple. But a short time later, I get an e-mail telling me that the application was successfully notarized.
At this point, I once tried the “Staple Only” option in SD Notary, but it couldn’t staple the original app, and it seems to have deleted the copy that it submitted - there was no Submitted folder, only a Working folder. If no UUID is returned, could SD Notary preserve the Submitted copy somewhere so that it could be used for stapling if Apple notarizes the app? At the moment, the only course of action seems to be submit the app a second time.
Meanwhile, here are more words of thanks for SD Notary, which makes life far easier than it would be without it.