Any attribute (dropdown) should be chosen first on configurable product detail page in magento 2

Question

Current Scenario:

1. First dropdown is enabled & have all options.
2. Second drop down is disabled. Plus it has no options. Once the first drop down is chosen, second dropdown options appear after this.

Please see screenshot.

I want both dropdowns should be enabled on page load. And user should be able to choose any of these first.

Answer 1

Have you checked for any third party module is installed which is doing this ?