Just searched for the issue, I find out the shader cache will purge itself when exceeding a limit, for me it is around 600mb. I have many games in my PC, after some testing it shows Mass Effect Andromeda generates around 200mb cache, Star Wars Battlefront 2 generates 300mb and Battlefield V generates 400mb, which means every time I launch one of these games after the other, the shader is purged, resulting in massive stutter for 5 to 10 minutes... This is a dumb situation. I've noticed that in May 2020 it was said the DEVs were planning to improve the shader cache function, now is already half past Aug.. I really hope this issue can be solved as soon as possible. It would be helpful If Nvidia can let users to control the size of NV_Cache folder .