x sheet layers dissappear, background dissappear

Hmmm— I cant fiugre out what Im doing wrong - Two problems keep puzzeling me: 1: sometimes the layers shown in my timeline are not shown on the x-sheet. How can I make them re-appear in my x-sheet…?
2: Why cant I see my background-layer in the drawing mode- but only in my camera-mode…? I once made it possible when I clicked the light-table - and life was great - but now it wont do that anymore…i only can see it in the camera-mode…Im sure the solution is easy, but its only easy if one know the answer… arghh… :-\

I think I have almost figured it out… :wink: