I'm using logic and am trying my first passage with Violin 1 Solo KS. I'm experimenting with 1 long note set as an endless loop. I've placed key switches along the length of the notes and I can watch the key switches "playing" on the Aria sample player, but there is no change in the note. No pizz, no trills, just one long sustained note. When I stop the transport while the whole step trill is keyed, I get a single short, whole step note. If a half-step trill is keyed, it's a single short, half-step note. What am I doing wrong? (I didn't find anything on this in the KS part of the manual).