Sims Won't Change Clothes

Could you try the following to see if the issue persists in a new game (for testing purposes)

1. Upload the Sim to your library or the gallery
2. Start a new game and enter CAS
3. Download the Sim to CAS to make a new household with it
4. Change all his clothing to something different
5. Place him into the game
6. Check if it persists.

I will try this but I'd really rather find a different solution, this sim is part of a file that I have developed a really heavy story for and am on the second generation of so I'd hate to just up and lose the whole file. 

My solution would have been just to try if that work. Since you already found another way though, we won't need to pursue this further :D

I had the same issue not being able to change clothes on a SIM. I cleared my cache, force stopped the app, changed the SIM to swim wear, then everyday clothes. Problem solved. 

@jeanieb1388 have you tried the solution? This is a rather old post, maybe you can make a new post if the solution doesn't work for you?
If you could add some information like if you're using CC or mods in your game that would be great!

So, I am having a similar problem, ( And yes, I do realize this thing was made 2 years ago) my sims will not change properly, say a sim will go to bed, the sim will stay in Everyday wear, regardless of their action. I do have Mods/CC and MC Command Centre, and I've tried checking for broken cc, but barely anything broken. ( I did remove the broken cc/mods ) MC Command centre is up to date, ( as all my other mods ) The problem only occurs in Children to Elders. Toddlers are normal but will not be nude in the bath tub or the " Run Around Naked " action. They will stay in what they were in before. When my young adult sims will go to bed, take a bath/shower or do something that requires changing for a specific action, they will stay in what they were wearing, previous to their action. This only started today, in my new game folder. I started off with a normal townie or the normal random sim you get when pressing "New Game" on the menu page. I'm still trying to figure out the glitch, but nothing new so far, the glitch irritates me very much, because I love making story type Sims with backgrounds with the most realistic gameplay as The Sims 4 can get. I do not own very crazy mods like for more in depth control over sims or mods for Mod The Sims to make or do special things, and I do not have anything that requires a mod to use in game, like furniture or like a "toaster". Please reply As Soon As Possible. And or when you have time, considering how many bugs you guys probably deal with on the daily that requires a lot of work. So, on that note, I'd just want to say, you're work is appreciated very much!

                                                                                                                                                                                      Thanks Again!

@Stardustgirl88 

Do you have any Mods or CC? If so move your Mods folder to the Desktop and delete localthumbcache.package. Then test the game.

I have the exact same issue

I've also experienced this problem since the latest game update, however I believe it's linked to the club system. I couldn't change clothes while my sims were in an active gathering, but could once I ended it.