gnome-shell[1692]: JS ERROR: Error calling onComplete: Error: Object St.BoxLayout (0x555ea1148580), has been already finalized. Impossible to get any property from it.
                                                    _resetTweenState@resource:///org/gnome/shell/ui/tweener.js:73:9
                                                    _tweenCompleted@resource:///org/gnome/shell/ui/tweener.js:105:9
                                                    _addHandler/params[name]@resource:///org/gnome/shell/ui/tweener.js:92:13
                                                    _callOnFunction@resource:///org/gnome/gjs/modules/tweener/tweener.js:203:13
                                                    _updateTweenByIndex@resource:///org/gnome/gjs/modules/tweener/tweener.js:332:9
                                                    _updateTweens@resource:///org/gnome/gjs/modules/tweener/tweener.js:345:18
                                                    _onEnterFrame@resource:///org/gnome/gjs/modules/tweener/tweener.js:360:10
                                                    _emit@resource:///org/gnome/gjs/modules/signals.js:126:27
                                                    ClutterFrameTicker<._onNewFrame@resource:///org/gnome/shell/ui/tweener.js:208:9
                                                    wrapper@resource:///org/gnome/gjs/modules/_legacy.js:82:22
                                                    ClutterFrameTicker<._init/<@resource:///org/gnome/shell/ui/tweener.js:183:17