If you haven't yet, try repairing game and deleting the game cache files.
Repair Game:
In Origin > Games Library, right-click on Sims 4 and select Repair. - Do note this repairs the game's install files for the actual game. It does not make any changes to the saved game files. Meaning that your saved games are safe, they won't be deleted. If you'd like you can copy the Sims 4 folder to a USB key.
Even if you don't play with mods or custom content installed, it's a good idea to clear game cache and the localthumbcache.package from the Sims 4 folder to help troubleshoot.
Delete Game Cache Files (What and How-To)
http://www.carls-sims-4-guide.com/forum/index.php?topic=29288.msg401662#msg401662The localthumbcache.package can be found in the main Sims 4 folder
C:\Users\Username\Documents\Electronic Arts\The Sims 4