Recording Problem

Hi!

So, i've been using my MPC500 for few months now, and i'm facing a problem that i never encountered before, i'll explain.

I have an intro (seq. length is 10) then different sequences (length : 2), i assign the sequence to make my song, then assign it to a sequence in order to record.
When i record, the intro is ok, the sequence that follow too but then it just stops (the recording mode is still on since i can see the time decrease but i don't hear anything).

I tried different things and i noticed that the problem was the switch from a sequence to another (sequence that are 2 bars long).

for example, intro (10 bars long) => 1st seq (2 bars long) are recorded just fine, but then from 1st seq => 2nd seq (2 bars long too) it stops.

Then, when i begin my song with the 1st seq (2 bars long) it stops recording at the beggining of seq 2.

It's not a problem of sequence, i tried with different sequences and it's not about that, not a problem of time neither, i've got like 10 mins of recording available.

I really think that the problem comes from the fact that my sequence are 2 bars long.

If someone could help my i would greatly appreciate it, since I worked tons of hours for this song.

Just made some 4 bars loop, the recording has no problem.
So it definetly comes from the fact that my sequences are 2 bars long...

Somebody can help me ?