@casimir666
Using xxl build rev 518 the files are played with dxva again but with your build rev 517 mpc failed to render the video, only audio was played because I disabled ffmpeg and left dxva enabled, the internal ffmpeg decoder decoded the video properly. Basically it played with "no DXVA" with your build.
Also check this situation (corrupted video):
mpc hc internal dxva
mpc dxva via cyberlink's decoder
@MarcioAB
Use recent builds. Compiled builds
here and changelog
here.