I have more than one project bundle from an earlier version (Sonar X3e)
that when I open in 2019.01 I get this strange behaviour.
The vocal track has 2 effects, VX-64 Vocal Strip and BREVERB 2.
When I try to play the project the vocal track makes a loud click
and the VU meters are pegged and no sound is heard for the entire project.
If I mute that track the rest of project plays normally.
If I disable the effects on that track the project plays normally (with no vocal effects).
If I delete the BREVERB 2 effect from the vocal track,
then immediately CTRL-Z to undo that, everything works normally.
But when I save the project and re-open it, I get the same weird behaviour.
I have BREVERB on other tracks in my project and it works properly there.
Does anyone have any insights, or can point me to some info?