Wait, I still have physical CD install disks for Photoshop 6 that I still use on one of my older computers. Is this saying that even if I purchased the software years ago on a physical medium, I can’t use it anymore?
Next question, if Adobe's license with dolby became retroactively invalid, they might have done the IP equivalent of selling stolen goods. This might make you a pirate even if you have no way to know it.
Morally, you're probably in the clear. Legally, you're in 'interesting case' territory, so lawyers can make you bleed for years. But that's basically always the case for just about any IP on this planet, so the question is basically: Are you worth the bother for Adobe or Dolby?