Help--no walking/yes head, no head
Preface: I began this, my 1st full character, started as one of the included Adobe torso-body characters. Once the head was done, I expanded the PS canvas to include a whole body. After re-placing origin points and artwork, which I found happens with a canvas extension, I created simple stick figure arms and legs to try out the Walk behavior, according to the ElizaSimpleUnrigged project and tutorial. I followed it several times and got no effect at all.
Then I noticed in Rig Mode, when I select the main character root or the head or the body, no mesh outline or mesh itself would show up for the head. But the mesh does appear for individual artwork inside the head and with the entire head in Record Mode. And all of the head's behaviors and Dangle physics work fine in Rec Mode. Is this one problem? Multiple problems? Not a problem and something I'm missing? Please and thanks!
With root selected--no head outline or mesh (Head & Neck tags visible are for the head, not body)...

Head selected (same result)...

Body selected (same result)...

But in Record Mode...

