frames unresponsive to tools

Harmony 14 Advanced: Out of 128 frames, the last five will not respond to any tools. If I now make a line on one of these frames, I can select, cut, paint, whatever. The drawings in the last five frames are somehow locked. I will have to redraw these. Any ideas?

difficult to say what it could be.

For me sometimes I have a drawing on one of the artlayers but another of the artlayers are selected so I cant grab it.

/ Mattias

Thanks Mattias, that was exactly the problem. I must have inadvertently hit a different layer. Not used to the layer buttons.