Tablature: modifying an existing note on the tab doesn't play the pitch

Duplicate? I hope not, couldn't find any.

When I modify an existing note on the regular staff, I can hear the pitch of the note newly entered.
When I modify an existing note on the tablature staff, the pitch is not heard.

For example
- Create a now score based on the Guitar+Tablature template.
- click on the treble staff and enter the Note input mode (N)
- enter 4 notes, for example d, f, a, c. We hear the pitch of each entered notes.
- go back to the 'a' with twice the Left key
- replace the 'a' with a 'e' for example. We hear the 'e'.
Now on the tablature staff
- click on the next empty bar of the tablature staff and enter the Note input mode (N)
- enter 4 notes, for example d, Right-Key, f, Right-Key, a, Right-Key, c, Right-Key. We hear the pitch of each entered notes.
- go back to the 'a' with twice the Left key
- replace the 'a' with a 'e' for example. We don't hear the 'e'.

(In this example, I've entered the notes with the names but it's the same thing if you enter them with the fret-numbers)

Thanks! (win7 - v2.0)