Water problem

[Otakumanu]

Okay so I am having a strange issue with this map. A water tunnel in the red base is broken:

Strangely, this does not happen in the blue base:

I made the red tunnel first and then created the blue one by copying the red geometry. I also tried replacing the red tunnel with a copy of the blue one, to no avail. Any ideas of what might be causing this?

 

[henke37]

First of all, do you have any leaks? Leaks screw up water big time. Second, do you have multiple water surface levels? If they share PVS (and are both expensive) then that's not allowed and will lead to issues.

 

[Otakumanu]

No, I cleared any and all leaks before compiling the first version. What do you mean by multiple water surface levels? If you mean in terms of brushes yes, it's part of the design of the water tunnels. All three water surfaces are in different areas of the map and share no sight lines.