Can't Check Checkbox in jQuery Collapsable Element

I'm using the following code to allow for an accordion effect on a series of table rows.

        $('.accordian-body').on('show.bs.collapse', function () {
            $(this).closest("table")
                .find(".collapse.in")
                .not(this)
                .collapse('toggle')
        });

Inside the collapsed rows I also have a series of checkboxes, to allow for options to be selected:

        <div style="float:right;margin-top:-5px;" class="checkbox check-primary checkbox-circle">
           <input id="checkbox1" type="checkbox" checked="checked" value="1">
           <label for="checkbox1"></label>
         </div>

These checkboxes cannot be checked or unchecked, even if not disabled, although the mouse pointer will chance to indicate a clickable element is there.

How can I re-enable the checkboxes?

Thanks!