I didn't saw this yet. It looks like something in e-d-s.(evolution:16745): GLib-CRITICAL **: Source ID 157764 was not found when attempting to remove it
This is WK bug https://bugs.webkit.org/show_bug.cgi?id=127474(evolution:16745): GLib-GObject-CRITICAL **: g_closure_unref: assertion 'closure->ref_count > 0'