Personally I'd love to know what differs with this challenge compared to the immortal one where I never crashed, I had a point of barely managing two weeks play time before crashing constantly with this one, I removed Seasons, Pets, Uni and Showtime and started over and this time crashing started around gen 5, I haven't traveled, I bought up what community lots I could and got rid of parking spaces around town, I get little lag at all but it still randomly crashes.
I enjoy the challenge of a dynasty but the bugs do get frustrating, for a shorter somewhat easier challenge than the immortal one this has given me far more technical headaches and it was on a fresh install with half of the content I used in the other one
The only major difference I have in this game is the occults, they were turned off before, perhaps it's something with them maybe.
I had to rearrange my kitchen at one point as the fridge got blocked by an invisible object I could not get rid of, thankfully it showed up after I moved somebody in, it was another social jig rug, those things are so irritating, I feel that's where the frustration comes from mainly, it's not the challenge or the gameplay it's the bugs that you know are so easily fixed but you can't if you want HoF, I guess it's a choice on the players part in the end. I may try the other two dynasties at some stage but whether I'll try HoF or not depends on my tolerance levels at the time.