Event Calendar and Tickets JS conflict with WooCommerce

Here is what I found in wp-plugins\event-tickets\common\vendor\select2\select2.js starting at line 1834 (not 928):

if ( select ) {
    // these options are not allowed when attached to a select because they are picked up off the element itself
    $.each( [ "id", "multiple", "ajax", "query", "createSearchChoice", "initSelection", "data", "tags" ], function () {
        if ( this in opts ) {
        throw new Error( "Option '" + this + "' is not allowed for Select2 when attached to a <select> element." );
        }
    } );
}

Also, your suggestion needs to be in select2.min.js.

Taking ajax out of select2.min.js removed the error but the admin membership select fields were disabled. Therefore, Woo is somehow getting to event-tickets select2.

I dumped the source of the admin page in question and found these references to select2:

IN THE HEADER

<link rel='stylesheet' id='custom-select2-css-css'  href='http://sellwithsoul.com/wp-content/themes/howes/inc/custom-select2/custom-select2.css?ver=1510658863' type='text/css' media='all' />

<script type='text/javascript'>
/* <![CDATA[ */
var wc_memberships_admin = {"ajax_url":"http:\/\/sellwithsoul.com\/wp-admin\/admin-ajax.php","new_membership_url":"http:\/\/sellwithsoul.com\/wp-admin\/post-new.php?post_type=wc_user_membership","select2_version":"4.0.3","search_products_nonce":"970c8f35d0","search_posts_nonce":"95e2f0a885","search_terms_nonce":"9ccc486ef8","wc_plugin_url":"http:\/\/sellwithsoul.com\/wp-content\/plugins\/woocommerce","calendar_image":"http:\/\/sellwithsoul.com\/wp-content\/plugins\/woocommerce\/assets\/images\/calendar.png","user_membership_url":"http:\/\/sellwithsoul.com\/wp-admin\/edit.php?post_type=wc_user_membership","new_user_membership_url":"http:\/\/sellwithsoul.com\/wp-admin\/post-new.php?post_type=wc_user_membership","get_membership_date_nonce":"c2f94b400e","search_customers_nonce":"acfab841c7","add_user_membership_note_nonce":"3970e822b5","create_user_for_membership_nonce":"13b8033667","transfer_user_membership_nonce":"9b9d129b34","delete_user_membership_note_nonce":"288dd47909","delete_user_membership_subscription_nonce":"84facb7f07","restrictable_post_types":["post","page","product","portfolio","team_member","testimonial","client","tribe_events","tribe-ea-record","slide"],"i18n":{"delete_membership_confirm":"Are you sure that you want to permanently delete this membership?","delete_memberships_confirm":"Are you sure that you want to permanently delete these memberships?","please_select_user":"Please select a user."}};
/* ]]> */
</script>

<script type='text/javascript' src='http://sellwithsoul.com/wp-content/plugins/woocommerce/assets/js/select2/select2.full.min.js?ver=4.0.3'></script>

IN THE FOOTER

<script type='text/javascript' src='http://sellwithsoul.com/wp-content/plugins/event-tickets/common/vendor/tribe-select2/select2.min.js?ver=4.7'>

<script type='text/javascript' src='http://sellwithsoul.com/wp-content/themes/howes/inc/custom-select2/custom-select2.js?ver=1510658863'></script>

I don’t see name conflicts. Do you?

Thanks for your help.
Merv

Update ….
I just determined event-tickets select2.js is impacting many WooCommerce admin functions using js. The latest is Products. Click to show hide admin functions do not work anywhere on a product edit page.

Disabling event-tickets select2.js brings Woo admin back to life.

When was select2.js added to the plugin? What is latest version that does not have it. I need to roll back to get my client site Woo admin working again!!

HELP!!
Merv