Zend certified PHP/Magento developer

Use Select2 with Magento2.4 Component create by meta

I have created a custom product attribute of select type have 2000+ value and try to use ui-select but it slow down my product page so I am trying to use select2 instead of UI select.

Due to some reason I create my component via meta.
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For Select2 I am using below module : https://github.com/experius/Magento-2-Module-Experius-Form-Select2

But now I am getting issue that when I open product add form it always shows me error message instead of my 2000+ options.
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When I open edit form it shows me all options but when I choose one it add an empty selected option too.
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Any suggestions?