Having some issue with textures (possibly HOM effect)

[TenenteZashu]

So I'm working on a map on which the player has to lower the water level of a dam in order to go back to the first section and use the blue key to open the exit, thing is when the water lowers this sort of hall of mirrors effect shows up under the windows:

 

 

What drives me nuts is that I made some more windows overlooking the water using the same method and this bug won't occur no matter what, the only real reason I can chuck this up to is that this set of windows was the first I made so I may have screwed something up when creating them.

Anyone has any idea on how to fix this?

 

 

Edited July 11, 2022 by TenenteZashu