Not sure if you have been following, if not take a look at this: I explained in these two links a bug probably from madVR, or D3D11 related. I thought this was MPC-BE's fault.
https://forum.doom9.org/showthread.p...12#post1940912
https://forum.doom9.org/showthread.p...93#post1941893
I was told to disable D3D11, which I did, first for h.264, then for MPEG-2, and now for good.
And so far the problems I reported have not returned. In fact they returned only when I tried today for the first time a DVDRip, which uses a different codec: MPEG-2. They haven't been seen ever since D3D11 was enabled and playing h.264 videos.
Even so, I keep using madVR. And was using when the bug occured in MPC-BE.