Issue With Product Variation When Characteristics Is On "text Label"

Hello,

I have some issue since 4.12.1 with product variations when characteristic is on "text label" look.

Customers can choose from every characteristic displayed even if product didn't exist. Product can't be added to cart but it could confusing for customers.

Issue didn't happen with drop down list.

Theme: Unitheme 2

Version: 4.12.1

Anyone else experience the same?

Best regards,