Sims 4 Dog CAS issue

Product: The Sims 4
Platform:PC
Which language are you playing the game in? English
How often does the bug occur? Often (50% - 99%)
What expansions, game packs, and stuff packs do you have installed? Cats and Dogs, Get To Work, Get Together, City Living, Parenthood, Vampires, Dine Out, Backyard Stuff, Movie Hangout Stuff, Spa Day, Holiday Celebration, Perfect Patio, Toddler Stuff
Steps: How can we find the bug ourselves? I don't know if anyone else is experiencing this bug but it's been happening a lot to me when I open the game and try to edit a dog.
What happens when the bug occurs? At first everything is completely okay and I can pick a breed and everything but then a couple minutes later the dog starts glitching and the screen will freeze for a split second as the dog is jumping in CAS or anything like that. This happens a few more times and then my game will crash and I get a notification on my computer of "Application has been blocked from accessing Graphics hardware. Application TS4_x64.exe has been blocked from accessing Graphics hardware."
What do you expect to see? I hope to see my game run smoothly again and I'm able to fully edit dogs without my game crashing.
Have you installed any customization with the game, e.g. Custom Content or Mods? Yes
Did this issue appear after a specific patch or change you made to your system? Yes
Please describe the patch or change you made. This happened after I installed Cats and Dogs

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I don't know exactly where this would go of if anyone has been having this problem but it's something I've been dealing with since I installed and started playing Cats and Dogs. Everything else runs great and I'm able to edit cats but every time I try to edit a dog's breed or clothes or anything along those lines my game starts freezing up. Eventually everything freezes all together and I have to fully restart my computer because I cant close out of sims 4.