Further experimentation shows that reverting libvte9 to version 1:0.15.3-0ubuntu3 instead of the newly installed 1:0.15-4-0ubuntu1 makes gnome-terminal stable again.
That is the bug would appear to be in the new version of libvte9.
Further experimentation shows that reverting libvte9 to version 1:0.15.3-0ubuntu3 instead of the newly installed 1:0.15-4-0ubuntu1 makes gnome-terminal stable again.
That is the bug would appear to be in the new version of libvte9.