darktable crashed with SIGSEGV in g_type_check_instance_is_a()
darktable crashed during editing a row of approx. 40 photos while trying to advance to the next photo in darkroom with pressing 'SPACE' and then trying to go back to lighttable with pressing 'l'. I didn't use any fancy modules.
I'll attach the backtrace and have uploaded the ubuntu crash report to https://www.dropbox.com/s/2nok8tozgg78us1/_usr_bin_darktable.1000.crash?dl=0 (600MB). darktable-dbg is installed, I hope that the information help to analyse the problem.
If I can provide any further information to help, let me know.