show all layers all artboards not working ai 2020
have to click the eye to view each and every layer on each artboard/layer that is hidden.

It will HIDE ALL layers using pull down menu or keyboard shortcuts -- but IF I have manually clicked a few layers to hide them, and then want to turn ALL back on at once -- it won't SHOW all layers either way of using pull down > show all layers menu or using opt shift click or Cmd shift click or CMD click or any kind of keyboard shutcut.

The layers I have clicked manually all stay hidden until I manually click the eye back on. This is ridiculous.