[bleep42]

Hi Milhouse & Popcornmix,
I did try going back myself and have found that from 0619x to 0801x seem to be ok, initially jumps to about 50% memory usage, but stabilises around 45%. The major leek starts in 0808x, so somewhere between 02/08/17 and 09/08/17, if that helps you.

#0805 had some hevc changes - can you confirm if that build introduced the leak?   

Hi Popcornmix,
No, it seems to be between 0805 and 0806? in that 0805 is good, 26% to 37% memory usage while playing.
0806 is bad, up to 70% after a few plays, where I stopped it before it locked up.
Thanks for looking into this. :-)  I realise that using this high a quality, sort of defeats the object of HEVC, I only generated them to stretch your new HEVC improvements. ;-)
Regards, Kevin