Required custom field not being enforced

[TheLaw]

I have a problem similar to this one and I just have a simple dropdown that the user is required to select. Unfortunately this is not being required and users can just blow by it without a selection in the custom field. I am guessing that there is something that I may be missing even though the box is checked to be required?

https://xenforo.com/community/threa...-attribute-not-working-for-checkboxes.214168/
Required custom field not being enforced

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