...same thing when using CTRL and the arrow keys to move through the notation window. (No note sound.)

(I am working with the melody track only ATM.)

There IS notes sounds when "playing" the song though or looping 4 bars.

Is anyone else having this issue?
Or am I missing a step in the process?

I am using Biab 2021.
I have installed all the updates.
Everything else seems to be working just fine.

Thank you.