It´s imposible to compose if I have to close sibelius everytime I want to stop reproduction because every note remain sounding if I don´t reproduce the whole piece. I think this is a very importan issue. Is there a post with a solution? Thanks.
P.D. I mean, when I se Kontakt as VST in Sibelius
That seems to be a long lasting issue with Sibelius, judging by these posts:
https://www.sibelius.com/cgi-bin/helpcenter/chat/chat.pl?com=thread&start=652232&groupid=3&&guest=1
I'm not that familiar with Sibelius, maybe there's a "All Notes Off" button or function. It's a standard MIDI message to stop all notes.