@sappiechan Does this issue happen with no mods at all? If not, it's almost certainly a mods or custom content issue, but you may have more than one outdated file. Since the 50/50 method hasn't clarified things for you, what you can try instead is adding your mods and cc to the game in batches, testing each time. Any batch that is fine can be set aside for later; any that isn't needs to be split and retested.
Please also keep in mind that you could have a mod conflict, so two separate batches of files could be fine alone but not together. The 50/50 method works here too, except that once you find one of the problem files, you can keep that in your Mods folder and 50/50 the rest of the files to find the one it conflicts with.
