Re: INFINITE LOADING BUILD MODE

It loaded in without the folder. That begs to question, how do I even begin to find out what mod is breaking the game? As mentioned before I have zero mods that are script, that alter the core game mechanics, or alter the look of certain menus at all. I have over 19k mods in honesty (80% CAS), but I never download script/ UI ones since they break often. I only have standard furniture packs for my build mode and nothing that alters the gameplay. What do I do from here to fix it? 

@RadioactiveKlown Start with this list: Broken/Updated Mods & CC . Delete everything broken. Delete and redownload everything updated. Temporarily move out anything not cleared.

For non-cleared mods/CC, test in batches. Instructions are here: https://answers.ea.com/t5/Mod-CC-Issues/INFO-How-to-Use-Mods-and-CC/m-p/13439356#FiftyFifty Start with a 50-50 of your build/buy CC.

I do check that list pretty much daily, and I have none of the cc listed on it. As far as doing my cc tests in batches, considering I have almost 20k (all unsorted) mods, that seems like a very long-haul kind of task. I'll start on it eventually but I'm sure it will take days to do the constant relaunches, removals, etc. I want build mode to work but my CAS and build mode cc are all conjoined and unsorted so I'll have to do batch tests of all 19k + mods. I'll maybe remove 1k at a time and limit the relaunches to find the problem mod batch to 19. When I find out what the problem mod is, I'll come back here and add that, so if anyone else has this mod and problem they will know to delete it.

I actually have one follow-up question. I have files called BPI, SGI, HHI, MIDI sequence, TRAY ITEM, HOUSEHOLD BINARY, blueprint and room files in my mods folder. I have multiple of most. Are those safe to remove? They are not like any other mod file I have and I am hesitant to remove them on the off-chance they are important.

@RadioactiveKlown These are Tray files and do not belong in Mods. Move them to Tray (your library).

Okay! I don't know how they ended up in there. I'll start mod testing probably tomorrow, as I am working the polls today. I'll update the thread asap with the solution! 

The problems were : Pierisim had many wallpapers that broke due to the driver update/change. That as well as the "Oh My Goth- Bedroom" set by Simenapule. Pierisim claims to have fixed the issues with wallpaper, but I still had them even when redownloading his packs. I decided to download them all unmerged, so I could individually remove all the wallpaper files, and that fixed it. His CC works, just not the wallpapers. Simenapule also said they fixed their set, which I have not tested because I'm so tired of the relaunches. Maybe it works again, maybe it doesn't, but I've been at this for hours and don't care to check. 

Now I actually have a new issue. Aside from thumbnails and cc being messed up in game after the update, I now get an infinite loading screen when switching to the manage worlds map from build mode. Can't win for losing in this game— one problem fixed and another pops up. I don't know what to do. I guess that since I can access build mode now the initial issue is gone but a ton took its place. 

@RadioactiveKlown Again, 50-50 is your friend. Be sure to delete localthumbcache every time you change the Mods folder. And consider refreshing your user folder and testing only in a new save.