Have you ever experienced such an issue? Driver not updating when rendering animation, but updating when single images are being rendered one by one?
Case description: I created empty, linked to a motion tracker. Then I parented a plane to this empty and baked action of this plane. Next I created driver for x offset of a Strip in Video Sequence Editor (Image of the setup below). Strip, which the driver is for, is moving nicely in the viewer and the Backdrop of the VSE, but when I try to render the animation (both to mp4 and PNG sequence) it doesn't. What's more interesting, it is rendering fine when I try to render it frame by frame with F12. Any Ideas? Is it a bug or I just forgot to turn something on?