Failed to launch error/Fully Black Screen when using CC

I can confirm this did not work for me. 

 Ever since the patch released on 3/17/2026 -- I haven't been able to open my game at all. I've been getting that same failed launch message that states that the error is on EA's part and to come back and try again later. For the first two days  I was jumping through hoops trying to get my game to work. I have repaired the game countless times, deleted the cache, reinstalled, did a windows update, drivers update, tried the -dx9 or whatever that even means. I have run as administrator, I have tried running the sims 4 exe file in the game files itself. None of this was working. During this time, the sims direct communication account on twitter was telling us all that the problem was resolved -- so I really thought it was just a me problem. Unfortunately, but thankfully, many other people are also having this problem.

 I've resulted in doing the 50/50 method with my CC. Luckily, I have all my CC organized so it hasn't been that bad for me. Yet, the CC that I tested to have worked, sometimes doesn't work. And the CC that I have deemed to not work, will sometimes launch anyways. This is despite having the error, I just keep trying over and over again and sometimes it will open. So It makes me feel like doing the 50/50 method is absolutely useless because there's no way of telling if something actually works or not. 

 I'm not one to ever really report my technical problems with the sims, and this is my first post ever on the forums. But this is honestly a little frustrating. Is it a problem with my CC like the sims team is actively blaming? Or is it a problem with the sims that they just aren't addressing? Why are CC creators the only one talking about this, and not the actual sims accounts? Every time they post, they keep saying everything is okay and working -- but the only people playing their game right now are the people who seemingly didn't update or don't have any sort of mods. 

TLDR: I'm not really asking for help because my game is in a state where I can sometimes launch it and sometimes not. This is mainly just a report so the sims team can have a good estimate of how many people are having this problem. 

 This is more a vent now so no need to continue reading past this point. . . but. I have always been really supportive of the sims. I have bought all the DLC and even the kits, which is over thousands of dollars now, I hear. I have always felt really bad for the sims team because of how much hate they get. I can't imagine working for a company that receives so much hate and out of line vile comments... but now with this new update, I can't even open a game I have spent thousands of dollars on. Which is an insane sentence to say. 

 This new marketplace they have added is not at all ideal, or anything I have ever wanted for the sims. I understand wanting console players to have access to this huge part of the sims community, but forcing them to pay money for something that is free for everyone else just seems money hungry and greedy. I was never going to support the marketplace. And now because of this unwanted update, I cannot even launch the game. . . Sometimes.

voici le lastcrash...

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Im having the same issue rn, if any other posts start coming in im sure its a server problem on their end.

i noticed that too once all my cas was in thats when i began having issue

I wish I could do the 50 50 method but its not possible to track the source of the problem. At one point the game will crash upon launch and immediately relaunching it and It will fail to crash. That means that the bug is inconsistent irreproducible and very difficult to track its source. Point is now I have to keep my task manager open and play with the launcher 5 times every time I wanna play the sims a problem I NEVER used to have before this patch

How can I share my documents EA folder. I tried direct messaging it yesterday and could not. And it seemed the instructions where only how to send a link via Google Docs or one drive. But there is no link under dm on here to send folders or files. 

Just tried this as i have a very organised Mods Folder and no it doesn't work but i will say it take less attempts to get in the less cc/build items i have in game. Once i managed to put all my mods in to the new mods folder, one by one, and creating folders within rather than copy/paste as instructed, it took 4 attempts before it finally launched. ☹️

I have created a new mods folder and transferred everything over except CAS CC and it loads fine, as soon as I put my CAS CC back in I get the error message. 

We need at least a statement that this issue is being tended to!