Checkout - Order completion issue

-- HikaShop version -- : latest
-- Joomla version -- : 3.3.6
-- PHP version -- : 5.3

Hello Hikaboys,

I am getting a non desired behavior on checkout, which is also not constant.

In single page checkout:
www.domain.com/checkout/checkout

2 main payment methods: Paypal and Offline.

1 extra required field, date type.

All required fields are completed, payment and shipment method is selected.

Clicking on Finish button,
goes to checkout page step2

www.domain.com/checkout/checkout/task-step/step-2

which in many cases is again the same checkout page (it looks mostly like a refresh to the page, but to a new url).

This forces customer to click again the finish button.
However the date field (which is required), usually loses what customer has entered previously, or changes the data to:

2015-02-26",disableFunc: function(date) { var today=new Date(); today.setHours(0);today.setMinutes(0);today.setSeconds(0);today.setMilliseconds(0); if(date < today) { return true; } return false; }, //

In other cases, the above value might exist at the first checkout page (usually if the customer has cancelled the completion of the order).

Can you have a look and drop any ideas of what might going wrong ?

Hello Nicolas,
thanks about date field info. This problem is gone now.

But I am still getting a second step in checkout which is unnecessary.

From: /checkout/checkout/
to /checkout/checkout/task-step/step-2
where there is nothing more to do, than clicking again the Finish button.

What can be wrong here ?