Yes, this is only PTI made. How would I fiddle around with different water textures? I don't think I have any choice there with the PTI editor. This map is basically identical to the other two maps which had no water problem. It only had a few more light strips and a gel dropper additionally. When I removed those it didn't effect the problem.
But still that's weird. I guess the PTI only use 1 same water texture for every map, doesn't it? So why such that variation amongst maps that only have few changes? I can't remember many PTI maps with lack of cubemaps or different reflections in water surface... I would understand a lack of reflections due to cheap water in huge maps in order to inmprove some performance, but not here...
So one of your maps does has reflections and another one doesn't? Does that one have multiple water levels? More than one "water plane" will cause problems with the reflections. It's an issue with the engine and the only way to fix it is to make all pools be at the same height.
Mevious, I think I managed to fix that issue. I use to have several water heights in my maps, and I fixed it accidentally by having a water_lod_control over each water brush with its specific values depending on the possible height or distance the player could be... No more fickering/disappearing reflections on the water surface (ofc this can only be done in hammer...)
