I think it's a bug with plain samples too, but have had zero time to investigate.

The midi support in the latest  LGPT ghetto running on OSX (Mavericks) seems to be totally broken.
I can get it to spit midi for a couple of seconds, then it will just stop sending any data or playback any samples.

Does anyone else have this problem or know a solution?

Maybe an older version won't have this issue? It's a shame there's only the latest build to grab on the page.
(I've tried the stable, it doesn't have midi support at all!)
I've troubleshooted this for hours now and can't come up with a solution or direct cause.
(log says nothing about the "freeze")

My only guess is that it has something to do with the update that integrated mapping support for midi devices- I'm thinking maybe the midi input causes feedback or something.