@Gaarel After every patch you need to go through all your mods and CC. That is, all the third party, not EA, material you have downloaded; and look for information on whether they have been updated. Even if you have done so at one point in time, it does not prevent them to error, in case of a new patch.
Here is how to make a new folder:
https://sims4.crinrict.com/eng/2014/09/resetting-the-game-to-factory-settings-without-reinstalling/
Follow the very pedagogical description to the point. Do not move back anything from your old folder to the new folder, until you have made a new save and played around in it, doing all the actions you noticed problems with.
If you do not have any problems doing them in the new save in the new folder, that means there is likely something in your old folder that creates the issues. Since there has just been a patch, the first troubleshooting step would be to go through your mods folder.
You have to look every mod and CC up yourself. You can use the 50/50 method for effectiveness.
The Last Exception Assistant rarely have anything to say. You'd be better off reading through the LE yourself, looking for mod names, and then go to that creator's site/Discord etc, asking about it.
I cannot open the LE for some reason. You can post it in text in a post, and under a spoiler to make it easier. I do not promise I am able to understand it. I am waiting for you to try in a new folder first though.