ENB Prepass effect

[BlueGunk]

I'm using L00ping's NAT.ENB 2.0 and discovered a very strange effect when the ENB shows snowfall whitening the ground in real time:

Weird Water

Unfortunately l00ping is out of action and can't be messaged. It's an ENB Pre-Pass effect which I can switch off. But I'd rather be able to adjust it if possible so that the water surface is correctly shown. It is there, just fairly invisible

I wonder if anyone here might be able to help me adjust this?

Thank you!

 

PS apols for this messy look - I cut and pasted from a Mod Page!

[BlueGunk]

Please ignore this question. It looks like this is a problem with many real-time snow cover shaders in ENBs. I'll just switch it off when too much trouble.