I created a parented set of symbols in Animate and now wanted to use the asset warp tool to animate them. When I select any of the symbols in the project and try to use the Asset Warp Tool, it changes the pointer to an arrow with the circle and a line through it and will not allow me to create any points. I am able to import some of the same png files into a different animation and parent them to other things and then can add points to them, but cannot do it to any assets in the one project.
I cannot find any documentation that explains what some causes for having this cursor might be.
Asset Warp cannot be used on symbols. Bitmaps and shapes will work but symbols will result in the behavior you are witness to.