I wrote this same issue to the Ardour user group but didn't receive any
bites.
I have 2 automation points left at the very beginning of the song that
won't delete.
All other ones were able to be deleted via a 'shift' + 'rt click'.
The final 2 won't delete!
Clicking on 'clear' in the automation window has no effect as well.
Any pointers?
Thanks!