[PSXPC_N] textures messing up underwater

[Troye]

Textures get messed up when the camera goes underwater.
Here is a video showcasing the issue: https://youtu.be/LbcWpN69hpw

I assume something is trashing the texture memory.
Some textures spotted are textures from the Ireland levels, as shown in this screenshot:

Tested on PSXPC_N, probably happens in other versions. I haven't tested.

[Gh0stBlade]

Fixed in latest build.