Multi-step layout and billing issues

Hello,

I have a problem with multi-step checkout layout and with billing step.

So first thing – multistep layout. Well when I click “Go to (next step name)” the previous step doesn’t disappear and page scrolls to the first step. Normally in multi-step checkout when I click “Go to (step name)” the previous step has disappear and page goes to next step. It seems like latest update has changed it. How to repair it?

And second problem at Billing step.

The “same as shipping address” checkbox is normally unchecked. Until update it was normally checked.

I would be very grateful for your help.

Best regards, Szymon.