I'm the one that complained about this awhile back and your post just made me realize that I am not seeing the popup. Both in 18 or 19. The only thing that has changed is that I am running off of a Temporary License because the new Archicad Software Key and my computer are not playing nice and this was Tech Support's solution while they dig into it.
Maybe the WIBU key stuff is the culprit and not Archicad?
Atlanta, GA , USA
iMac (Retina 5K, 27", Late 2015)
3.3 GHz Intel Core i5 32GB
AMD Radeon R9 M395 2GB
Latest Archicad 22