Minibrute Arpeggiator problem

[Sidhu]

Hi!
my minibrute is doing a strange arpeggiator rythm,
instead of a normal regular sequence of notes, it is skipping some of them, for example instead of 123456789.. is playing only 1__45__89..
with a silence instead of playing 2,3,6,7
https://snaptube.cam/ 9apps
i tried different swing, mode or octave settings but i can always hear it
never had this problem before
any idea what it could be???

thanks a lot.