Daily reservation error (Wordpress)

We are getting the following error when making a daily reservation: Invalid. Check out date must be after check in date.

In settings we have it set to Minimum length of stay 0.
On the Asset we have Booking type set to Per Day.

If we ignore the error message and do the reservation it works, it goes to paypal and comes back as confirmed and all emails are sent out.
hunahuna.com/hunawp/gazebo-rentals/

Hi,

We can confirm this issue, the fix should be included in the next update.

If you want a patch, please raise a new support ticket and provide us a FTP account so that we can fix it for you.

Regards,