Actually, you have the latest tex.gfpk already. I know what the problem is. I mentioned the possibility that this would cause problems before, but now I can confirm it.
Some outfits normally don't have Normal Maps or Specular Maps... however they have them only for the International Version Sentinel, because Normal and Specular maps are necessary for the censor to work properly. If you just want to restore it to the Korean version, you do, in fact, need to create blank Specular and Normal maps for every outfit that doesn't have such in the Korean version, but I know one person was looking into editing the censor elements out of those maps and retaining them, thinking it might enhance the appearance.
EDIT: Apparently, there's actually a bit more to it. Sevyria PMed me on the details. Apparently, certain outfits use a common SP or NR file across multiple outfits... except for the International Version Sentinel, which has individual NR and SP files for those so they can match them to the exact patterns of the censor for each outfit. We apparently need to locate the generic SP/NR files and make copies for each armor.
EDIT 2: Actually... I think Sevyria may be on the wrong track, and incorrectly extrapolating from the fact that the different color Schoolgirl outfits actually do share a common SP and NR file.
If she's reading the situation correctly, one would think the ones for costumes/underwear that don't have them in the Korean version should be identical save for the details to distinguish the censors... but they aren't. They're custom-tailored to each outfit. Granted, they could have redone them from the generics while they were making them censored, but that's a lot of extra work.
I think we need to add Blank NR and SP files for any outfit that's lacking one or both of them, to over-ride the International-specific ones. But, maybe I'm misreading Sevyria's input. I've encouraged her to post it to this topic.
EDIT 4: Wait, no, blargh, I misunderstood at first. She's definitely on the right track, here.