cant see through walls

i have tiara the new 1 and the problem is i can't see through walls in some dungeons like ciar, but i can see through walls in ciar hardmode. this also happens with math and rabbie.
i need help to fix this because walls can make you die in so many points

ty

Remove your mods. Problem solved!

nope that didnt work

Of course it worked. If your modless, everything should work just like normal now :)

Wait, what, how do walls kill you? Explain please.

Actually, I think he means he needs more mods. He wants the walls to be invisible in both ciar HM and ciar-not-HM.