Midi Notes Not Playing back " SOLVED"

I opened up AD2 loaded a kit , Loaded the step sequencer with a basic 4 /4 kick clipped grooved it , played it and missing notes , So I tried playing the kick via my keyboard , same process same results. Maybe user error. 

I saw something like this too - but haven't had any time to investigate further. I have a song in progress and I'm using Superior Drummer. When I opened the song in Platinum - it was missing random MIDI notes when playing back the drums. If I "adjusted" the note in any way, it played back OK.
 
Every time I closed the song and re-opened it. The same thing would happen - but it's random notes that get dropped. Even playing back a few times - different notes would drop, or maybe the same ones.
 
I just assumed a "gremlin" got in to the file - that may or may not have to do with starting in X3e and then opening in Platinum. I couldn't be bothered troubleshooting (it was late at night) and just bounced the drums in X3e.
 
I'm pretty sure it's fine with a file created in Platinum - so maybe not worth spending much time troubleshooting...

dj,
Glad it worked. This drove me nuts .
I have mine at 999 w/o any problems. Many others have it at 999 as well.
If your problem re-occurs for a different project, just bump it up again.
 
Hey what buffer size do you run with the FW-1884 and the Q9550 ?
At 48Khz/24, I can get maybe 256 samples for recording. Once and a while 128.

microapp
Hey what buffer size do you run with the FW-1884 and the Q9550 ?
At 48Khz/24, I can get maybe 256 samples for recording. Once and a while 128.

I use my Fw-1884 only as a control surface now a days . I only needed 2 inputs and 2 outputs having issues after 8.5 . I ended up with the Roland Quad capture.

microapp - I changed my settings from 250 ms to 999 and it works perfectly.
Thanks for the tip! I'd never really seen this problem before. Something must be a little different in Platinum because I've always gotten by with the default 250ms setting.
 
I'm using Superior Drummer BTW - so it's not just a AD issue.

Mines a i7-3770K, but I haven't paid attention to see if it's any worse  on the CPU. I don't find the CPU meters that accurate anyway.
 
Something is different though. Anyway - setting to 999 did the trick. Going up to 500 (from 250) didn't cure the problem - but 999 did. There must be some downside to this - but we'll see... ;-)

Just another "Thank you".  I too had to move up from 250ms in order to get a beat right using AD2;  I went straight to 999 but may play with settings if I can find any details on possible problems.
 
Here was the odd part for me that had me pulling my hair out for the last two days.  Using AD2, if I did a Sync play/stop with the groove selected, everything was fine.  Once I dragged the beat into a MIDI track I started having problems.  
 
Anyway, back to mixing.
 
Matt