OK, thanks. It looks like the problem is in gnome-shell:
JS ERROR: TypeError: this.actor is null vfunc_set_actor/this._monitorsChangedId<@resource:///org/gnome/shell/ui/layout.js:103:25 _monitorsChanged@resource:///org/gnome/shell/ui/layout.js:548:14 _onFailure@resource:///org/gnome/shell/ui/windowManager.js:107:18
OK, thanks. It looks like the problem is in gnome-shell:
JS ERROR: TypeError: this.actor is null
vfunc_ set_actor/ this._monitorsC hangedId< @resource: ///org/ gnome/shell/ ui/layout. js:103: 25
_monitorsChan ged@resource: ///org/ gnome/shell/ ui/layout. js:548: 14
_onFailure@ resource: ///org/ gnome/shell/ ui/windowManage r.js:107: 18