Problems with new embedded videos

Hi there,

Your app was working brilliantly, but recently every uploaded video is acting weird – it always has a border, it never loads full size – always cropped, and I need to make multiple adjustments to it so that it works well.
This is rather inconvenient, as in the past it would work straight away – right now I need to go into attributes and fish out unnecessary ones.
Am I doinng something wrong, or this is new expected behaviour?