Stalling on v 1.3 & 1.3.1

I upgraded to 1.3 from version 1.2.1 about 2 weeks ago, but haven't used Serviio much since then. I've now noticed that files encoded at a higher bit rate -- 1080P movies specifically, now stall several times during movies. I upgraded to 1.3.1 to see if that was an issue with 1.3, however the issue was still there. I then downgraded back to 1.2.1 and the stalling issue went away.

I'm running serviio on a Mac Mini with 8 GB of ram, so I'm pretty sure it's not the machine, and since downgrading resolved the issue, I can just use that for now. However, if anyone has any suggestions, so I can upgrade to 1.3.1 and not have this issue, that would be great.

BTW, my tv is 55" Samsung Plasma Model PN58C7000

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If you could send detailed log of playing the file in 1.2.1 and 1.3.1 for comparison it'd help