Cas stuck on loading screen.

Unfortunately it's the same for me and I don't use many mods that could solve this problem unfortunately. What I would like to add, instead of restarting your PC, search for "Task Manager" on your PC, click Sims 4 and then "End task". It'll stop the programme without the fuss of restarting your PC completely. Hope that helps

Let us know if that works for you, pretty pleaseeee.

Still doesn't fix it. 😭

use a mirror to plan outfits, worked for me.

Thank you! I'll try to figure out how to open task manager on my PC so I won't have to at least restart every time :)

I removed all those mods just now to see if that'd get it to load for me, but it didn't work 🥲

This does work to customize your outfits! It's a good way to get around the glitch, but sadly for me I'm trying to customize the new turn on's and turn off features 🥲

ctrl alt delete and then task manager should pop up as an option, that's what I have been doing since this bug has appeared

Remove w.i.c.k.e.d.w.h.i.m.s mod and then you could modify in CAS, then you can put the mod back for its functionality.  L.u.m.p.i.n.o.u.'s mod should be removed completely. CAS is working in random, sometimes it was working if I had switched to world mode and edit households, then it didn't work. By removing these mods solved the problem. Also, look for the mods, which modify traits. They are not good with the latest update.

I'm also having this issue. No mods, CAS works fine. With mods, endless loading screen. Hope this gets fixed soon.