Missing Palette

I have been using my recently purchased Animate 2 all week and seemed to be working fine. Today when I turn it on the palette is missing. I can’t activate the default palette and the palette window is blank. I have tried re-opening the projects I have been working on several times and the same result. If I create a new project, the palette is there. It seems very odd. I can’t think of anything I have done to switch or remove the palette on these projects. Any ideas anyone?

Click on the first cell of a drawing layer to load the palette into the palette window.