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...
Looking at a ton of other puppets, I'm not sure the mesh or its outline not appearing where I'd expect is a problem. I did find that the Walk behavior is getting confused by the Head Turner views I have set up elsewhere (8 views listed under the Walk behaviors instead of 1), and it's ignoring the Waist, Neck and Shoulders I tagged.
So that's my update, Happy New Year! Be safe!
Waist is critical. I think what has happened is it picked up the head profiles as body profiles, then looked for waist etc in those profiles (so found nothing). You might need to put head turner on the Head layer (not at computer just now to check). But I would focus on the profiles being body profiles (even if just one), then the layer/handle tagged "waiste" must to be under the profile layer it selected. (I am hoping by having HeadTurner behavior on the Head layer it will pick up the profile layers inside Head instead.)
It's a basic Head/Body structure, but the complication is that this is a parallax head with quarter views actually in the Nose, for different angles as the head turns--learned this from Digital Puppets.
I deleted Walk from the root character level and added it instead to the Body level, and there is now motion as expected and 1 view but no connection to the head, of course. I'm racking my brain, trying to think of a way to rearrange layers to reconnect the head while bypassing the Nose. In Dave's Body Tracker tutorial, he recommends placing the Neck tag inside the Body now, between the shoulders, so maybe I need two necks in some form?
It would be nice if CH didn't get confused like this or if I knew the dead ends before I mistakenly "hacked" my way into them.
Looking at Emily Watts's Bunnie puppet, it has Walk behavior and 32 views, with all the head turns included on the list, so I don't know why my 8 views is messing it up. It doesn't matter if I tag my Nose as a Nose or a Head.
I believe this is the solution, which is roughly the same as what you offered, I believe, alank. But since it's over 4 years old, if you think of any revisions, please add them--only if you have the time. I've only been using CH a few months, so I don't know how much has changed since 8/2017.