Image traced objects lost fill and won't come back

[Ramafarian]

Nembie here, I was working with image traced (vectored?) images and something around clicking on brush strokes made all my black lines go empty. I've tried trying to change the fill and color but cant get it to revert. It also seems to not be effected by the undo command. Here are some pictures of the before and after (2 different saves). Any idea what I did wrong here and how to fix it??

Thanks~

[Ton Frederiks]

Cmd Y (from Outline view to Preview)

[Ramafarian]

Thanks, I tired that and all it does is thicken the lines. I do see one of the objects goes from white to filled, but the rest of them stay outlined. Any other thoughts? I tested it on the original save and I see it does bounce between the two when toggled.