Custom PPSSPP shaders

[LunaMoo]

Yeah I saw it first time;p and as mentioned earlier couldn't reproduce it, tried same game and even experiemented with non default gpu driver settings like VSR checking 2 pc's with amd gpu's and win 7, nothing bad happens here:
   

Your screenshot doesn't exactly point at any problem, such result would happen when rgb vector ends up (0,0,0) aka black for texture coords x/y under 0.5, something like that shouldn't happen unless you modified a shader to do that possibly by mistake when trying to tweak it outside exposed variables.
If you didn't even touched those files, it must be something specific to your system, bug at your gpu driver, some dll injector or whatever other software you might be using that could be affecting ppsspp, no idea what could that be.