Hugin doesn't want to start

Hello,

For some time now the panorama creating software Hugin doesn’t want to start anymore.
When I start it in a terminal I get this:

hugin

(hugin:16938): Gtk-CRITICAL **: 12:44:39.986: gtk_widget_set_size_request: assertion 'height >= -1' failed

(hugin:16938): Gtk-CRITICAL **: 12:44:40.019: gtk_widget_set_size_request: assertion 'height >= -1' failed

(hugin:16938): Gtk-CRITICAL **: 12:44:40.128: gtk_widget_set_size_request: assertion 'height >= -1' failed

(hugin:16938): Gtk-CRITICAL **: 12:44:40.129: gtk_widget_set_size_request: assertion 'height >= -1' failed

(hugin:16938): Gtk-CRITICAL **: 12:44:40.130: gtk_widget_set_size_request: assertion 'height >= -1' failed

(hugin:16938): Gtk-CRITICAL **: 12:44:40.131: gtk_widget_set_size_request: assertion 'height >= -1' failed

(hugin:16938): Gtk-CRITICAL **: 12:44:40.131: gtk_widget_set_size_request: assertion 'height >= -1' failed

(hugin:16938): Gtk-CRITICAL **: 12:44:40.137: gtk_widget_set_size_request: assertion 'height >= -1' failed

(hugin:16938): Gtk-CRITICAL **: 12:44:40.138: gtk_widget_set_size_request: assertion 'height >= -1' failed

(hugin:16938): Gtk-CRITICAL **: 12:44:40.139: gtk_widget_set_size_request: assertion 'height >= -1' failed

(hugin:16938): Gtk-CRITICAL **: 12:44:40.140: gtk_widget_set_size_request: assertion 'height >= -1' failed

(hugin:16938): Gtk-CRITICAL **: 12:44:40.140: gtk_widget_set_size_request: assertion 'height >= -1' failed
Aborted (core dumped)

Since I have no idea what this means I ask help here.
Who can help me?
Thank you.

Fix on the way, meanwhile see comment #1 on this bug report:

https://bugzilla.opensuse.org/show_bug.cgi?id=1204546

Thank you Paul, this did the trick.