Programmer boot up question

well, my programmer works fine, all as it should.
there’s just one thing:
after boot up, there is a held note playing the preset patch with random noise. I can switch presets, the note is still hold and the preset something randomly noisy until I play the keyboard or a sequence. then it stops. I switch preset then and everything works fine from here on.

what could be happening after boot up?
does anyone have had the same thing?