[Huuh]

I am having the same issues with openelec 5.0 and OSX Yosemite with Kodi Helix installed.

Issues I have seen are stuttering while playing liveTV (fixed by enabling demuxing), playback freezes after a few minutes of watching and the log says "MythTV PVR Client: (CPPMyth)Read: read position is ahead" repeatedly unless I pause for a few seconds and then play. I see these issues with both MythTV 0.27 and 0.28.

Everything was working fine on openelec 4.2.1 and liveTV works fine with mythfrontend, I checked the CPU use on the mythbackend machine and it never goes above 7%.

When the playback freezes I see this in the log:

CDVDMessageQueue(audio)::Get - asked for new data packet, with nothing available
CDVDMessageQueue(video)::Get - asked for new data packet, with nothing available

Log file

When the playback freezes in Kodi the liveTV recording continues in MythTV, it seems like the mythTV addon is reading to far ahead and then playback freezes.

Any ideas on how to fix MythTV playback on Kodi Helix?

I'm getting the exact same error as you are when I don't use the cmyth version of the plugin. I've tried increasing the tuning delay, but that didnt' help at all.