No more sound after sampling

Hi,

I got a problem with my MD : after a session doing some sampling tests, I got no more sound on the MD except from the last 4 trigs (13,14,15,16). When I press any of the other trigs, the led doesn’t light any more (again except for the last 4 trigs). It’s the second time I got this problem, and each time it’s after resampling sessions. The first time, I had to do a factory reset. It’s very surprising, and annoying. I must precise one thing: in test mode, the MD screen doesn’t shows any problem with the DSP.

Did someone here already have this type of problem?

Cheers