I cannot pose my humanoid, even though it is rigged and parented I have a mesh based humanoid with texture.
I added and adjusted the metarig.
I click body, then shift-click metarig.
I right click and do parent -&gt; Armature Deform -&gt; With Automatic Weights.

I try then to pose the model but the metarig is the only thing that moves. Seems like the mesh and the rig are not bound, despite looking like it in my scene collection pane, within the metarig's tree. (Body is inside the metarig's collection).
About to self-destruct.
while in object mode, select your object shift select (add select) your bone armature, then hit ctrl + p, with automatic wheigths.
But before you do this apply scale (ctrl+a) for both mesh and bones, people often forget it and that gives a lot of problems