Text area - entry is required. Required checkbox value ignored

[humantex]

I have a single form on a page, with 3 text boxes, 1 email field, and 1 text area. All fields are set as 'required', except for the text area. The form can not be successfully submitted unless there's something entered into the text area. Unpopulated, it shows: "Please enter a value" with any submission attempt.

The text area itself is set to a character limit of 300 max, and no minimum - and with no default text. I've added some help text to be shown below the input, and not shown as a popup.

Here's a link to the page with the error: https://condoatsiestakey.com/reservation-calendar/check-availability

[humantex]

It turns out that entering any value above zero as the maximum character limit will turn a non-required text area into a required element. Resetting the min/max values back to 0/0 allows it to remain non-required.