I was working in a file where I had written about 245 measures. Everything was working just fine until a few minutes ago. It had several measures with layered notes. I used only layer 1 for most. I used layer 4 when I need rhythmic variation within the measure. This is normal and the correct procedure in Finale. In this file the problem is that when I click on layer 1 all of the notes of layer 4 disappear. When I click on layer 4 all the notes in layer 1 disappear.
Has this ever happened to anyone reading this post?