These are a mix of .mp4 and .mkv videos I have copied to the SD card. I use MX Player Pro, but have tried a few others from the play store that freeze immediately. These videos worked fine on the last ROM I was on (4.4). I tried different HW, SW, and HW+ decoders, with and without subtitles, internal memory storage, other file types, etc. No success.
Otherwise running great! But without movies and tv shows, my tablet is hindered supremely!