Filter Module form not submitting with enter key when using dropdown filter

**Please delete this topic** I resubmitted it under the search/filter category
-- url of the page with the problem -- : shop.cwpoolsandspas.com
-- HikaShop version -- : 4.6.1
-- Joomla version -- : 4.1.5
-- PHP version -- : 8.0.17
-- Browser(s) name and version -- : Edge 98.0.1108.56

My filter module includes a long list of Brands that I'd prefer to collapse into a dropdown. But when I change the brand filter from a checkbox to dropdown the "enter key" no longer submits the form from the text field. The entire filter fieldset still works if the user clicks the "filter" button but a user should still be able to hit enter after entering text to submit the form.

I inspected the page and noticed that when a filter is changed to dropdown the form element and a hidden element are different

(No dropdown filter and enter key works fine)
...
<input type="hidden" name="return_url" value=" shop.cwpoolsandspas.com/index.php/search...&filter_Brand_1= ">

(With dropdown filter, enter key stops working)
<form action=" shop.cwpoolsandspas.com/index.php/search " method="post" name=hikashop_filter_form_module_130" onsubmit="window.hikashop.refreshFilters(this); return false;" data-container-div="hikashop_filter_form_moduel_130" enctype="multipart/form-data">
....
<input type="hidden" name="return_url" value=" shop.cwpoolsandspas.com/index.php/search ">

Any suggestions would be appreciated. Thank you.

Working URL: (typing in the search field and then hitting enter submits the form)
shop.cwpoolsandspas.com/index.php/search

Broken URL: (typing text in the search field and hitting enter does nothing)
shop.cwpoolsandspas.com/index.php/cat/6

The only difference between the Hikashop Filter Component is on the broken URL the "By Sub-Category" dropdown filter is visible. If I changed the "By Sub-Category" to a checkbox then it'll work on the broken page.

Yes, the "By brand" "Submit on Click" is now activated and the results are the same for the page with the dropdown. When I type in the text field and hit enter key nothing happens.

I disabled chosen library but don't don't have access to PC to try it. Though it still didn't seem to work from my smartphone. I'm using the LTheme_Swim hikashop template.

It works after disabling Chosen Library. Thank you for helping me troubleshoot and resolve.