Hello Louis,
I do not have Babylon Waves. But as I read your posts, I think Logic's behavior here may need clarifying. Apologies if you already know the following.
Logic is my only DAW (for better or worse), and I routinely hit the keyboard only to hear an inevitable staccato -- the left-most dimension / top-most patch slot of Synchron in factory presets, and consequently the first item in our Articulation list.
Your recorded material has articulations embedded in the note. But they have nothing to do with what you play live. Open Logic's plug-in window for your Synchron Strings pro track. It most likely points to the staccato patch you hear.
That's what you're going to get playing your MIDI keyboard. What's in your pre-recorded regions is irrelevant.
Now go to a Piano Roll window displaying a region and click on a note. In Piano Roll's Local Inspector (assuming the window is high enough to show "Articulation"), you'll see the name of the articulation assigned to the note selected. The "live" selection in the plug-in window is completely separate from that.
Now de-select any and all notes in Piano Roll. PR's Articulation box will probably revert to the live input note -- most likely the first articulation in your list (often staccato).
If (with no pre-recorded notes selected), you choose a different articulation in PR, that should become the live input articulation, and the articulation displayed in the plug-in window should update.
Equally, if you select a new articulation in the plug-in window, the PR Articulation should update -- but only if no pre-recorded note is selected in PR. That's always the catch.
It would be more elegant and helpful if PR had two entries for Articulation: one for "Selected Note" and another for "Live Input."
Plowman