Retroarch: Impossible to load any shader

[legolas119]

Hi, i have just configured 2 playlist on my retroarch installation, the NES and SUPER NES playlist. I have done everything correctly, followind all the steps pf a really good guide. Everything works fine, but it is impossible to load any shaders on every emulators of both playlist… Following the guide:

run a game --> quick start menu --> Shaders --> Video shaders = ON --> Load preset --> choose any of the .slangs shaders available. I tried several shaders, usually the most common crt shaders, i know that they are supported but any of them isn’t loaded. I’m using the latest Retroarch version available and with all the shaders updated. Do you have any idea how to solve this issue? Shaders are really good and without them i’m not so interested to use Retroarch  

Thank you