It has been plaguing my computer for ages now , almost to the point of giving on MPC-HC - though to be honest , VLC does the same .
It started happening more than 3 years ago on a completely different hardware and has persisted troughout 4 motherboard changes , 3 sets of RAM , 5 HDD/SSDs
3 PSU units , 4 video cards , 3 CPUs , 3 cases and 4 power outlets and a more than I am comfortable with OS re-installs .
So yeah , what gives .
I got the answer,you have to change renderer from "EVR" to something else,I prefer "VMR-9",everything goes fine.
Hope amd fix this because EVR is the best renderer in MPC-HC.