Volume gets down after Changing ENV Speed

[sparki]

while minibrute is playing and i hit the ENV Speed Fast/Slow Switch, the minibrute gets silent. same issue is when i play around with the amp. env. faders, minibrute also gets silent. i just get it loud again by turn minibrute on/off.
is this a failure or do i something wrong? thats my first analog gear, so i really dont know nothing about it.

[Bruno@arturia]

Are you sure that the gate selector on the back is set to KBD mode?
It sounds like you are in Hold

[sparki]

hi bruno, yes its true im on hold. so it is not possible to change the mentioned values on hold mode, without lowering the volume, even if i trigger the keyboard??

[Bruno@arturia]

No not possible. It's by design on the envelope:
if you hold the gate (using hold switch, or holding down a key) and lower the sustain, volume will decrease, but it will not increase again until you retrig the envelope. But you can not retrig in hold mode.