Pagebuilder and cmb2

Why page builder not working properly with cmb2? I was trying to use example from cmb2 examples: https://github.com/WebDevStudios/CMB2-Snippet-Library/blob/master/widgets/widget-example.php On WP widget pages he work correct with lateste cmb2 plugin from github. But if I added it to page in page builder row when I opened it looks like JS is not working:

Screenshot at 14:14:59.png

Screenshot at 14:14:59.png

If I open it on wp widget page:

Screenshot at 14:16:19.png

Is that page builder or cmb2 issue? It looks like very convenient combination of plugins for wordpress workflow. ;(