default potplayer uses overlay, I can't remember why at some point I changed the renderer to vmr 9, maybe I needed it for screen capture or something, but the thing with vmr 9 is that every time I lock the screen in windows and unlock it again, the potplayer would crash. I didn't try any other renderer so I don't know if this only happens to vmr 9. when I switch back to overlay, potplayer doesn't crash anymore.

so why does potplayer crash with vmr 9 when I lock my screen?