I checked the last version of Ardour 3 (3.5.14) amd64 into my ubuntustudio 12.04 amd64 and it can’t load any project.
The error message was:
(ardour-3.5:3957): GLib-GObject-WARNING **: Attempt to add property gtkmm__CustomObject_N9Gtkmm2ext23CellRendererPixbufMultiE::active after class was initialised
Failed to register port “MTC”, reason is unknown from here
GLib (gthread-posix.c): Unexpected error from C library during ‘pthread_mutex_lock’: Argumento inválido. Aborting.
Could you please explain me what happen?.