op-overview Shortcode / show_closed_days false not working

[codeagencybe]

When using the attribute "show_closed_days" to false in op-overview shortcode, it's not working.

show_closed_days="true", works fine show_closed_days="false", still shows the closed days with it's caption When I remove the attribute, then it's gone and fine.

I would suppose that the bool value FALSE should also work as supposed?

Is it possible to use the attribute closed_text in this same shortcode? I tried but it still shows the default caption. I would like to use this attribute to show "by appointment only" instead of "closed"

Thanks!