Onion skin hides behind background

I imported a bitmap background from a storyboard. I putt it on a bottom layer and animate on a top drawing layer. unfortunately the onion skin only seems to work with the bottom background layer is turned off. same goes for lightbox and turning grid mode on and off.

I got it to work once before But i don’t know what i did to fix the issue.

A restart does not help.

Nay help would be awesome. Thanks!

Select the layer and go to “Properties”. change Type to Background. This will allow the onion skin to show through the background layer.

The onion skin feature is for viewing the previous/next drawings of the same element of for animating the cut-out character. For tracing over an imported bitmap you need to use the light table feature instead.