Hey IsThatGuyOK, if you've noticed these changes only after the update, please head on over to Ubisoft Support and submit a ticket. Please include as much information and detail as possible about how often/when/where these crashes are occurring. They will do their best to help you figure out a solution to the problem.
I don't know if it's connected in any way but yesterday afternoon into evening PSN was down across Europe and parts of Asia. The PS twitter feed said that PSN was fine but external internet issues were affecting it. When I tried my pc the internet speed was greatly reduced from the norm but then perked up. Tried the PS4 again and PSN was back up. Didn't have any issues after that. Could be unrelated of course.