Use
partcutdesc_generator_v2.0.zip for that, if you are not already using. If you need to delete the line for that armor, and it's clipping like that, there's nothing it can be done.
Have you tried pressing the numpad ENTER key too?
Meta Injector or Resorepless?
Karlstein UB is part of the 8000 files that can't be patched, it has been like this since a long time ago. It can be patched in the KR version now though.
About underwear: Efferia Marina _ao.dds file is also part of the 8000 files that can't be patched. To remove that underwear, you have to use the option "Remove a specific part" from resorepless and put the .pac instead of the .dds
Plum's underwear I also believe it's one of the 8000 files, again, use option "Remove a specific part" and remove the .pac instead