When a radio button is selected but any input field within the form has validation issues, validation spans are added to all input fields. This is expected behaviour. However, in the case of radio groups, the validation span is being inserted between the label and the input element (checkbox). This interferes with the Bootstrap element selector, preventing the background colour from being applied to the checked radio button.
the required validation should only be applied to your first radio button.
Yes that is correct it is applied to first radio .. but that span shouldn't in between label and input checkbox..
@Teodor Any update on this ?