Failed to launch error/Fully Black Screen when using CC

I've been having this same issue the past few days and realized tonight that what mods/cc was showing up was located in the same level as the ts4scripts I had installed (i.e., mccc, UI_cheats).  I added more ts4 scripts I'd removed, and they, too, started working after I ran a repair from the EA app for the umpteenth time.  After that, I started adding back in more mods/cc, some as loose packages, some as folders containing packages from favourite creators.  When I added the cc folders to the mods folder, the crashes and "Failed to Launch Game" errors came up.  Once I removed those cc creator folders though, cleaned the error files, localthumbnails, &c., things worked again.  Since all was going reasonably well with .package files at the same level as my .ts4script files in my mods folder, I went back and copy-and-pasted the .package files from my sequestered creator files into the mods folder along with the script and cc that worked, and after restarting the game, those cc packages showed up in-game as one would expect. My suggestion is to put the most dear to you cc packages in right next to your most dearly loved script files no more than 1 folder deep so you can play while EA works out the bugs from this last update& hotfix.  Man, I  hope that was clear to everybody! It's the middle of the night where I am, I've been trying to sort this out scientifically since before sunset, and you've got a person dealing with foggy long-COVID brain coupled with foggy Parkinson's brain.  Good luck, friends!