First, let me emphasize that I'm only a week or so old in Blender. My knowledge is very little in the realm of 3D modelling. Anyway,
I took a Vroid model and deleted a few limbs off of it. I then replaced the limbs with custom-created models meant to imitate prosthetic limbs.
When rigging the limbs with the skeleton, some of the objects became paired to the body's mesh and not the body's skeleton.
I've tried just about every way I can to get rid of this.
I tried to see if I accidentally parented it to the body mesh, but after spamming alt+P several times and selecting the various 3 ways to unparent something, it didn't work.
So I went looking around the vertex groups of the model. Predictably, I found the correctly-rigged objects' vertex groups under the skeleton tab, and also found the wrongly-rigged objects' vertex groups under the mesh tab. I went to Object Data Properties for the model, selected the groups, and pressed the minus button. Yay, they're gone!
But I select the model again and the objects are highlighted, like I didn't do anything. The objects are still attached to the mesh and now I can't find them anywhere in the Scene Collection.
I also tried outright deleting them, but they're paired with the model, remember? If one goes, the rest goes with it. Deleting the wrongly-rigged object will delete the entire model with it (bones not included for some reason).
Also I accidentally named the bones wrong... the left leg goes on the right side and the right leg goes on the left side. I placed them on the correct side anyway.
These are the vertex groups for the model. They're grouped by letter, so that means that anything attached to the mesh that begins with R would be here... but it's not. I can't find it and I also can't take it off of the mesh.
I can't progress any further like this, I need the limbs to function properly! Is there any way to fix this?