Problem with Publisher Posts Loop

Good afternoon, a few days ago I’m having problems with this widget, I have spoken several times already with my template designer and after trying all possibilities is the widget that has problems.

“Anyways, I just did a test on this. It turns out the multi-select doesn’t work properly if you’re using it in the widget area sidebar. This is an issue with the Site Origin Widgets Bundle.
I’ll report that to the developers tonight and see what they say about it. Right now it will only work in the sidebar if you want just the latest posts, or just select 1 category.”

The problem I have with “Publisher Posts Loop” is as follows:
Select several categories Ctrl + click, remain selected, but keep the categories lose the selection and appears only.
I uninstalled and reinstalled widget, still does not work
The categories are correct as you can see
The functionality is correct because if I select only one category multiple items are

Could you help me, please?

URL: http://buenaboca.es/