Logic Midi Note Dead, Please Help!!!

Question

I am mixing some cues for a indi production. Today I merged two midi regions (region1, and region 2). However the last note of region one now won't play correctly. I need it to be a held not but no matter what I do I only get like a eigth beat staccato note and then silence. This only happens on any notes placed in that particular beat of that particular measure. No matter what not it is I ge the same effect. I've gone through my event list to see if any controllers are affecting it but none seem to be active on that beat. Please help. I really need that note to hold the entire beat.
P.S. I'm on logic pro 9

Answer 1

Thanks for the reply,
I've already checked for multiple notes, nada. I can get no sound on the beat, just not a long sound.
It looks right on the piano roll editor. Thats the problem. I can't use the piano roll to adjust the time of the note. I'm writing a song in the piano roll using the esX24 as my synthesizer. So its a pretty basic bare bones set up. I've tried copying other notes to that beat, no results either. Anynot I put on that partical beat, no matter what i is, will only play a short staccato.
Is there any sort of catche for midi data that might have recorded an error?