[Ardour-Users] Soloing not working on session imported from A2

[Q]

Hi

I've recently started using A3 (I've got revision 13061) and have opened 
a session created with A2.

When I solo any track, there's no sound whatsoever. As far as I can tell 
all the settings are the same as for my A3-created sessions which work 
as expected.

What am I missing? Why does soloing a track mute the audio in that track 
as well as everything else?

Many thanks

Q