EXS 24 Logic Sampler Users Group

HI  LOGIC USERS,
I THINK THIS PROBLEM IS ONLY MINE BECAUSE NON 
SERIOUS SOFTWEAR COULD BE SHIPING WITH THIS BUG.ITS 
THE FIRST TIME THAT I TRY SYNCRONIZATING THE 
PLAYBACK OF PERC. LOOPS FROM EXS24 INTO ONE LOGIC 
AUDIO SESSION.
MY SESION ITS 100 BPM ,THE LOOP SAMPLER FROM EXS24 
ITS 90 BPM, I TRY TO CHANGE THE FINE TUNING OF THE 
SAMPLER TO MATCH THE TEMPO OF THE LOOP WITH THE 
SESSION TEMPO. I FIND A GOOD VALUE SETTING , FOR 
EXPAMPLE, +21 OF SAMPLER FINE TUNING.ALL SEEMS TO 
WORK FINE:
MY LOOP PLAY IN SINCRO. WHIT THE SESSION. A SAVE THE 
SETTING MADED IN EXS24 INSTRUMENT WITH THE SAME 
MANAME OF MY SONG AND LATER A SAVE THE SESSION.I 
CLOSE THE SESSION AND
GETOUT FROM LOGIC .
THE PROBLEM BEGIN WHEN THE NEXT TIME THAT I RUN 
LOGIC AND OPEN THE SESSION ,THE LOOP SAMPLER DONT 
SINCRO WITH THE TEMPO OF MY SONG.I GO TO THE 
SAMPLER INSTRUMENT AND TAKE A LOOK TO THE SETTING 
MADED IN THE FINE TUNING BOX AND I CAN SEE THAT ARE 
THE SAME THAT I HAVE BEEN PROGRAMED.
I JUST NOTICE THAT EVERY TIME I RUN LOGIC THE TEMPO 
OF THE LOOP ITS DIFERENT.SOME TIMES ITS PLAY IN 
SINCRO AND OTHER NOT.ITS RADOMLY .
PLEASE HELP ME. ITS IMPORTANT TO MY.WERE IM WRONG?
(DISCULPAS POR MI INGLES)