Hi, I have a problem in that rather than the normal X for invisibility or . for visibility in the Adobe Animate (formerly Flash) layers, I have a layer which is stuck in some kind of mode in which I cannot make it visible. Clicking it toggles between the X and, rather than the . a 9-square checkerboard icon. In this mode everything in the layer appears grey. Can anyone tell me what this means, and how to restore normal layer visibility?