As title says.

I've been building a SweetFX/Enb setup using SweetFX HDR (wich I believe is tonemapping ?) and got lethal doses of pink. Couldn't find a solution and decided to try Serenity Enb wich claims to have true HDR, it seems to be affected aswell by pink madness.

Any way out ?

This is wrong place to ask about SweetFX, nobody will help you. And if you try not just SweetFX, but mixed preset, then ask author of it or manually remove each component to find what exactly produce issue, may be it's just palette image or shaders like enbeffect.fx or effect.txt, replace them with default and see if something changed to the better.

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i5-4690k, 16Gb RAM, GTX 1060 6Gb, X-Fi Titanium, Win7 x128
I am INFP, not the brutal, godamnit.

It's a common hdr issue not related to any app in particular, just wanted to know if anyone knew an useful trick to lower its impact.
Palette and vibrance tweaks are a bad solution since you got to ruin red spectre to ged rid of the occasional hdr pink.

I'm not familiar with SweetFX, so only can guess it's because of the code in it. HDR naturally don't have this issue, it can't. If the bug happen because of modifying ldr image, so pink is not just pink, but color artifacts in general, then dithering partially helps. But if it's because of shader math, then all you can do is to ask someone experienced with shader programming for SweetFX, because experementing yourself by chaning values and restart will take too much time.

_________________
i5-4690k, 16Gb RAM, GTX 1060 6Gb, X-Fi Titanium, Win7 x128
I am INFP, not the brutal, godamnit.

Thank you Boris.