Added samples don't stick to the sampler, they disappear!

Hi all,
I found a tutorial to add personal samples to the sampler:…

Although I followed the instructions it doesn’t work, the samples I add in my “test” profile disappear and it comes back to the default samples. On the picture attached, altough I selected my test profile (named Favoris), the sample at the left came back to the default MS Crash.
Any clue what I’m doing wrong?

I’m on Mac, running the latest version of DJay Pro 2 and OS.