Validation error for A type mask

I tried to use the validation error event to handle missing characters in a text field. I wanted to have let’s say a min. of 6 characters and therefore I used a mask type AAAAAA.

The A type should be a mandatory character, based on the Language Reference.

When the text field lost focus, I do not get an error. The validation error does not fire.

I understand the validation error is based on single characters, but it should not fire with the above situation ?

Suggestions here ?

I notice when using ### I get a validation error when typing an invalid character, but not AAA or >???. Not sure the answer, just chiming in as well.