Thanks for the reply. I had more data that I tried to post here over the weekend but, for whatever reason, the site wasn't taking my replies. It was, instead, deleting them.
When I return home this evening, I can try to post that info here again. Not sure if it will yield any valuable info or not. It was detailing the new SQL query that I had to run to grant permissions to the `lansweeperdb` user `lansweeperuser`. That was the only thing that I could think of that caused the issue as it was the only real change that I made.
More to come later. But, for now, I would advise that this had major brand impact for your company as I wasted most of my weekend on trying to fix it and, after using LS for like 5 years, I finally started to look for suitable alternatives. (Of which there don't really seem to be many... "Runzero" looked decent, though. Especially because it's server component can run on Linux... *HINT HINT*.)