I have created a custom attribute(multiselect) for product with the same filter type as category selection on Magento 2. Attribute selection is working fine when creating a new product however it is not working on edit form. I have noticed below error from knockout js on console.
knockout.js:1449 Uncaught TypeError: Cannot read property 'apply' of undefined at Function.ko.observableArray.fn.(anonymous function) [as push]
i modified the component by adding the following code
'arguments' => [ 'data' => [ 'config'=>[ 'component'=>'Magento_Ui/js/form/element/ui-select', 'elementTmpl' => 'ui/grid/filters/elements/ui-select', 'filterOptions' => true, 'multiple' => true, 'disableLabel' => true, "showCheckbox" => true, ] ] ]
A help to fix this issue would be much appreciated.