Set cursor set to default
 loading from /home/paul/mymusic/jasons_dreaming as jasons_dreaming templ  is_new 0 bp 0
No MIDI maps found using ./../share/surfaces/midi_maps:.:/home/paul/.config/ardour6/midi_maps
locate took 12917 usecs for 24 tracks = 538 per track
Reading Mdrums took 2152 microseconds, final size = 1054
Reading Mbass took 485 microseconds, final size = 340
Reading Mrhygtr took 1996 microseconds, final size = 1588
Reading Mldgtr took 746 microseconds, final size = 666
Alist 176732 not found
Alist 188361 not found
Failed to register port "insert 2/audio_return 1", reason is unknown from here

(ardour-6.0.163:23502): glibmm-ERROR **: 21:49:51.499: 
unhandled exception (type std::exception) in signal handler:
what: unable to create port 'insert 2/audio_return 1': failed constructor

Trace/breakpoint trap (core dumped)