I have a purchased copy of Acrobat Pro. It had been functioning fine for years. Recently, I get "Your Adobe Acrobat Trial has expired. Buy now to restor full access to Adobe Acrobat" when I try to print to a .pdf.
This is some combination of annoying and perplexing, since I wasn't trialing; I have a full license.
I had a similar situations with a few seats of my volume licensed Acrobat. On those workstations, I had to unistall and reinstall Acrobat. Then it licensed correctly again. Seems like Adobe playing with the perpetual licenses everytime they "improve" the subscription license methodology.
I don't know about your case, but I know that when you install a subscription product on trial they tend to "take over" the licence management on products being offered as a subscription as well as on perpetual basis.