CS Form - Date picker validation not working in slot

Hi @charlie

I’m back on forms again trying to get a validation check working on a date picker.
There maybe complications due to using a slot for sections of the form (see screenshots)

I have tried as much as possible to make sure the same date format is being used (Y-m-d) for both the date field and the validation check but no matter what date is chosen the validation fails

I vaguely remember something about a fix for date checking, but I am on the latest version of pro, & cornerstone forms

Any ideas?