Videolan seems to have a problem with MKV, at least on my computer. Actually it´s unplayable at all. It seems to be a recent problem, a few years ago it played easily. Any remedy?
VLC you mean ?
I have it installed and i only every use it to play MKV's
And i have never had any problem with it.. Not trying to call you a liar though

Maybe try and do an updated / clean fresh install of it ?