I’m a user of the Mini M8S and until last year I ran it with LibreElec. Since there won’t be any updates for my kind of device any more I changed to CoreElec so far it’s working really good for me.
I’ve noticed one issue with video files that have a rather high average bitrate. I haven’t fugured out the exact hight but it probably starts above 20 MBit/s.
If I press pause and wait for over 10 seconds until the “Netflix-Style” pause screen pops up and then press play again audio is going on while video freezes. After about 5 to 7 seconds later video leaps forward and gets in sync with audio again to play normaly further on.
Video files with lower average bitrates at around 10 MBit/s don’t show that issue and I can’t recall having had it with one of the LibreElec builds.
I have to mention that I run CoreElec from internal storage. I have CoreElec 9.2.0 on an usb drive and playing the same file doesn’t show this issue. I know, CoreElec doesn’t give support for running it on internal but the day to day experience running it from my usb drive is not so great. It’s not as smooth and I have often menu hangups that won’t go on for 10 seconds or more.
I really hope some day this issue will be resolved. I don’t want to go back to using LibreElec.