Expose Filter by a multi-value field checkboxes element

Hi guys,
I'm tried this module for my submission in Drupal8.

I create the view for my submissions and expose a filter for my checkboxes element.

This checkboxes element is displaying with "Unorder List", so I have this situation in my table view:

• Value_1
• Value_2
• Value_3

The expose filter seems to work only for the first value and not for the others.

If select the first value I see the results, while if the second value is selected the view returns no value.

Thanks.