Turn off shader cashe in driver control panel. See [url=https://www.youtube.com/watch?v=l5P6q3vn-38]here[/url]. Say that this helping on nvidia, but i not guarantee it will work.
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what exactly is shader cache?
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It stores the results of the compilation of a game's shaders by and for your GPU so that your video card won't have to compile them again when the same operations/situations arise.
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Look at link in first message