It’s hard to tell what connection method you are using which would inform us on the log which appears to have quite a lot of the things you mention is happening missing.
MAC downlinks are not our fault if we’ve got a good config at our end, so aren’t really in scope for the FUP. There is no reason why you should be getting lots of them and not getting application downlinks arriving, so there is work to do.
No point redacting anything other than the keys, everything else is transmitted in plain text at some point, but particularly not the frequencies - which channel plan & region are you in and have you got them matched up between device & gateway.
I’d reset the whole system for each test so you are starting from a clean slate each time.
Bit of housekeeping:
LA66 USB module join request fails - MIC mismatch is on the front page still and is the third entry in the search. It may help. Search is your friend.
And with your scrolling, no doubt you’ll have seen lots of code formatted with the </> on the toolbar. Please use the pencil tool to edit your post and format the log output.