1.3.0 crashing on Fedora

Latest release, 1.3.0 crashes on both Fedora 27 and Fedora 28 with the following error message:

[14795:14795:0501/195223.173126:ERROR:browser_main_loop.cc(299)] GLib-GObject: g_object_unref: assertion 'G_IS_OBJECT (object)' failed
Rolling back to 1.2.0 works fine.

[tbaumann]

Same on Ubuntu Bionic
[15901:15901:0525/095725.419006:ERROR:browser_main_loop.cc(299)] GLib-GObject: g_object_unref: assertion 'G_IS_OBJECT (object)' failed
No crash though. Just hangs and does nothing.

Strace attached
strace.txt

[lgnap]

Still same issue on Fedora release 29 (Twenty Nine)

[outergod]

Same issue here on Fedora 30.