Newbie question …5-13

Hello. Just bought Syn V pro. $99. , Had the !4 day trial, but deleted that, opened the purchased version. I have a project underway, from the trial version, saved with name. It would not let me write notes with sound beyond about 3 bars….swiggly line stopped, but note insert ok. Ie, bought real version. Dragged project into upgraded app, . Same sitch , Able to write notes, but swiggly line won’t extend, hence no sound.
Voice is set to new , Mo Xu, which comes with new app.
Why no sound, or swiggly line ? What am I doing wrong ?
Thx for any answer.

What’s wrong ?

You may need to extend the edges of the region in the top part of the window. If you draw notes outside the group I’ve noticed it behave this way.