Previously to that, the file and GP operated fine together.
Even worse, after this crash, the Gig file in which it took place could no longer be loaded in GP without causing an immediate crash.
As it happens, a good bit of recent work is in that latest Gig file. If there is any way to make that latest Gig file reload without crashing, please advise.
FWIW, the .mid file above still opens fine in both GNMIDI and MIDIopsy.
Here is the crashing Gig file, in case that is of any help.