The Actions Editor doesn't seem to work in Xcode 16.1.
With a node selected, when I try to drag an action from the Library into the Actions panel nothing happens, the action icon just disappears. Clicking the '+' button to create a new action doesn't work either.
Actions do work when created in code, though.
Is this a bug, or am I missing something?
I'm seeing the same. It used to work in previous versions of Xcode but not in 16.1, must be a bug.
Yes, it seems to be a bug.
It was a nice feature and sometimes very convenient, so I've filed a bug report to try and get some attention from Apple, although at this point SceneKit seems pretty much abandoned, unfortunately.