Has anyone experienced this yet?
 
This is the most frustrating kind of problem to track down because it is intermittent and I cant seem to cause it to happen but it happens 5-6 times a session. Addictive drums simply stops playing and then 10-20 bars later, it will kick back in.
 
This has never happened in any other version of the X series so far. No other problems playing back any other soft synths in X3.

Try increasing your playback buffer.

Thanks for the suggestion, Its pretty high already ( 512) but will give it a try and report back.
Does this have to be a multiple of something ( 64, 96, 128, 256, 512, ect )  ??

No, it is expressed in time so multiples of 2 don't matter.

Thanks scook,  so far tried less than 512 just to rule that out and no improvement. Trying higher settings this evening.

Just to be clear, the playback buffer is the  "Prepare using nnn Millisecond Buffers" in Preferences > MIDI > Playback  and Recording. If you are dropping notes, it should not be set lower than 500 ms.

Thanks for the clarification!

This definitely seems to have helped!!
Thanks to scook for the helpful info...saved us a lot of head scratching!