Padshop2 sounds never ending

Hi, with all instruments, including Apollo, I play a few notes, and then the sound is never-ending.
There are two ADSR envelopes, for both of them the Sustain Level is at 100%.
Diminishing them every time I change a program is not very comfortable so I tried to reinstall Padshop2 and Apollo I bought but with no success.
The display is sometimes weird too, i.e. when I want to change a program I have to click on the “Logic” button then “Attribute” to have a proper display.
This happens on my PC, Windows 10.
Did someone experience this problem? Thanks in advance for your help.