Missing Thumbnails / Forever Saving

@AkariRyo Memory Panel and Milestones Expanded are not compatible with each other. Pick one.

@AkariRyo Okay, as a next step, try deleting and redownloading your complex mods. Double check their installation instructions.

@luthienrisingEverything has been redownloaded, and the problem is still happening ☹️ 

I have also used thee Sims 4 Mod Manager application to delete CC that was conflicting.

@AkariRyo Please try this workflow:

• Make a fresh user folder, backing up your old one: https://sims4.crinrict.com/eng/2014/09/resetting-the-game-to-factory-settings-without-reinstalling/
• Run a Game Repair
• Start the game and start a new save to make sure that one works
• Exit the game. Copy your old save file to your new Saves folder
• Start the game and use Load to select your old save and test it. Exit without saving if you want your CC back on your Sims without doing it manually later.
• Now start adding CC back in gradually.

Go through Broken/Updated Mods & CC again
- M0: RPO Core Library is outdated
- redownload MCCC just in case; the date on these isn't visible
- Stand Still in CAS is outdated
- UI Cheats is outdated

- redownload your 18+ mods to make sure they're current

@luthienrisingOkay, that seems to of helped I played for around 15 minutes without the glitch happening. Im going to add my CC and report back in around 30mins to an hour to see if its gone!

@luthienrisingIt is not gone. It only took about 5 minutes for it to come back. I have no idea what is causing this issue. I did everything you said, and deleted all my conflicting CC. I have no clue what it could even still be at this point. If you wantt I could screen record my game so you can see what happens.

@AkariRyo You're going to need to solve this by testing vanilla to make sure it's working with no mods/CC and then gradually adding content back in, unfortunately.