Core dump - Add BBT Marker

Hi there,

Here is what I have so far as a minimal working example (MWE) for an ardour core dump.

http://de.gauthier.pl/pour/.ardour/2026-09-25_CoreDump.ardour (~24.4 KiB)

^ All is fine with this file until you Add BBT Marker (By right clicking in the Bars:Beats time line trying with most any name, any bar, any beat) after which I get :
[1] 295294 segmentation fault (core dumped) ardour9

Archlinux
Ardour9.8.0 (built using 9.8 and GCC version 16.2.1 20260810)

Could you archive the whole session (rather than just the session file itself) and make that available?

Of course !

http://de.gauthier.pl/pour/.ardour/coreDump.zip

but those file where created automatically when I oppened the coreDump.ardour file.

I really hope this helps.

Or maybe I should start over :

I have this studio session that I want to setup for a full symphony orchestra where everything is written down in typical PDF scores. From this LilyPond project I have this MIDI file in which most sections, tempo, time signatures resides.

Workflow :

  • Start a fresh ardour9 session
  • Session → Import Audio/MIDI files…
  • Select metronome.mid
    • as new tracks
    • playhead (which is at bar 3 since I want two extra counting bars before bar 1)
    • one track per file
    • -none- as MIDI Instrument
    • by track number
    • X Use MIDI Tempo Map
    • X Import MIDI markers
    • Import
  • Add BBT Marker to set current bar 3 as bar 1.
  • Core dump :sob:

I can add the BBT marker just fine, but then double-clicking on it crashes.

It also looks like Ardour does not import the Time Signatures present in the file, but that’s a different story.