EXS 24 Logic Sampler Users Group

Peter,
 Thanks for your suggestions. It is indeed 2 notes of equal pitch. 
The duration is 1 bar, which I messed around with, trying a little 
less and a little more than a whole note to see if that had any 
effect. No dice. I must reiterate that this problem occurs sometimes 
with a simple 1 bar drum loop(in the EXS24, not in an audio track) 
set to play on 1 of every bar and triggered by a simple whole note. 
It doesn't matter whether I copy the 1 bar object or loop it,it 
plays for about 2 bars and then from the third bar on, it plays only 
about halfway(2 beats, rather than 4).In the track parameter window 
I have tried selecting Legato, 200%, etc. as well as lesser values, 
even "fix" To no avail. I have quantized the note using Whole, half, 
quarter, etc. Nothing. Should I go to the EXS and select "One shot" 
to force the sample to play all the way through every time?

 This is the most basic of functions one asks of his or her 
sequencer in dance music, hip hop,jungle, etc. I love Logic and have 
used it for years on and off, but want to resolve this issue ASAP. 
There must be some gap in my knowledge here. Has this been a problem 
for anyone else?