Hello, I am a similar user to the one in front of me, and I had the same problem! I quote his writing. I would be very grateful for your help! I am very pleased that the program is already available in my native language! I look forward to your reply.
Yours sincerely, Zsolt Juhász.
"I've been using the software for years and I love it. I'm just an amateur who has a 3D printer and your program was a great tool, thank you. The upgrade to V4 was great and it was a great experience even compared to other software that you can use it for free, like fusion 360, which I tried to avoid, despite the fact that the other 99% of fans use it, while I told them that DSM is better (and it is) ... I tried the beta version of V5, but very it was fine but i was waiting for the stable version using V4 unchanged then you released the "stable" version and ... oh hell what can i say? i can't log in now because i get the message "Maximum number of installations" so i will try on my profile turn off all other installations and it's not even possible.I created another account to use the software and after a while I get the message "DSM can't be updated blah blah blah" and the program blocks itself - even even , if you have already said that you have recorded this on the server side. Now I seem to have lost a project I was working on for weeks and made the mistake of opening and saving the new V5 "stable" release.
You should no longer be warned about maximum activation. We are increasing the number of DSM copies on your profile. "