Hey datrh ,
Unrelated to 18.3 but it's the same on 18.0 18.2 and 18.3 i have this problem that when i try to run anything that is .mp4 it will either be stuck 1 sec prior to the end if i let it play and if i try to skip or stop the video it will insta freeze.
Checking the system information i didn't see any issue in the Ram but CPU was above 100% on Kodi.bin when this happens.
Afterwards it's impossible to run any commands or exit that screen in any way.
I've tried completely default settings and all the versions, i didn't have it on my old device so i think it's either a Minix or a Kodi issue.
Any idea what could it be or what i could check?
BTW wanted to point out this only happens with mp4 files every other types (so far) are fine.
Ok after some googling and trial and error i found the issue related to amcodec h264 hardware acceleration if i turn it to off then everything is fine so in case anyone else comes across this try it out.
I found also issue with HW acceleration in last 2 versions of KODI.
I'm not able play next video with HW acc. when I try to play another video I'm get freeze of picture.
But I hadn't that problem with version 18.1.
It looks everything working with SW acc.