If I add a product to the cart and go to the checkout page, then click "Notes and special requests" and type something into the field, it does save the note, but the modal stays open with the overlay, and the progress bar keeps running continuously.
In the console I see this:
Code:
Uncaught TypeError: can't access property "toLowerCase", elem.nodeName is undefined
val jQuery
updatecart .../plugins/system/vmuikitx_onepage/cart/onepage.js:2831