Meridian not playing mp4 audio files ?

[BigGreenMat]

So I own the droid and generally like Meridian for most of my needs, but some of my audio files are mp4s and they play fine with the built in music player, but for some reason won't play on Meridian. Meridian claims to play that file format, but any time I try it just closes out of the playing. What gives? Is this a bug in a new update? I could swear it worked perfectly before, but I am not sure.