It also does this if your users login using a Microsoft account.
In any case, this is finally the deal-breaker for us. They have been trickling restrictions out for some time now. $16/user/year is just too much for rehashed open source software to create PDF's when Microsoft now pre-installs it for free. For the extra management features, etc. I could see paying a moderate site fee (maybe $100/year) or a reasonable per-user fee, like $1, perhaps with a $20 minimum.
In the meantime we are removing 3.20 and earlier from all systems, and not deploying any newer versions.