Standard oracle functionality is not working when one custom button added in the Edit Journal Page.

Summary:

I have created one custom button in the Edit journal page name 'Validate' for a business requirement in my project. That custom button itself is working as expected.

Purpose of this custom Button :

We are using this button to call a OIC endpoint and show a Error response to a User to fill the Journal line attribute category information, if that Journal line account combinations matches with a value sets value.

Mainly , we want to make the attribute category field as mandatory , if the journal line account matches with the specific value set.

Issue :

But we are facing issue in the standard oracle functionality , while clicking on the batch action drop down and then Copy option from that list , the page is simply getting refreshed and no pop up is coming as expected. We didn't make any changes while our customization in the batch action list. We have simply created one custom button in sandbox using JavaScript and published the sandbox.