First I couldn't click on anything once I opened the child's simology panel, I couldn't scroll down on it which was the first thing I noticed was broken, then I couldn't open her inventory, switch to...
Ideas
Had this happen as well after updating today as I was switching through tabs on the bottom right. Once I noticed the bug, i reloaded without mods and still had the issue. Couldn't press Esc, couldnt quick save, couldn't queue up tasks. Had to task manager to close it. Probably a good thing because as I was trouble shooting, my sims got in an argument and lost half their friendship 😞