I have the same exact issue and had exhausted literally every option to fix it and the only fix for me is the removing the pack itself.
I figured with this update I would start fresh from scratch with everything so not a single mod, no custom content, no saves, no tray items, squeaky clean. Tried repairing the game and deleting cache. Uninstalled, permanently deleted all files and reinstalled the game.
It's been 2 days of 8+ hours working on this to see if I can actually play the game and still nothing. It's empty, completely from scratch and the only way the game runs is with the pack disabled.
I don't know if I'm cursed or if EA specifically just hates me. I hope and pray for a fix because this was my most anticipated pack ☹️
@Avybelle Please run a dxdiag and attach it to a post.
https://help.ea.com/en-us/help/pc/how-to-gather-dxdiag-information/
Please also let me know exactly what happens when you play with the new pack: lag, crashing, something else? And does it happen in all worlds or only a few?
