Perhaps not to your specific question ....
I often check LoTW's queue time after doing an upload.? Previously (months ago) the minimum queue delay would usually be just less than 60 seconds - unless it was right after a popular contest weekend which could introduce additional processing delays.? Over the past few months, the "typical" queue delay is now often only 30 seconds, or so.? I assume ARRL has added some computer processing muscle to the system for better response time.
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But once in a while - in spite of showing a short queue time - the system for some reason takes longer to process my upload of new contacts.? When that happens, my subsequent "download" from LoTW will still not contain acknowledgement of the recent newly uploaded contacts.? At that point I've learned to simply ignore the delay and initiate another "download" later - usually the next day - when the system has completed processing my log.? So you may just want to try again at a later time.
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Also remember, TQSL certificates must be renewed every 3 years.? Check to insure yours is still active:
?? Log into LoTW ; Click "Your Account" ; Click "Your Certificates" to see the valid date range at bottom of page.
Fred, W9KEY