I set up one skin for one rigged character, and it all went 100% right. I did the exact same steps and process to set up the skins for a second character, but this time for reasons I don't know, a chain link symbol has appeared on aproximately 1/5 of the attachments in this second character.
In the picture, you can see the hand has the link symbol and when its selected, it shows:
"Mesh | Standard [strange symbol] the name of this attachment"
But the other attachment does not have this, as it should.
Standard is the name of one of the character's other skins, but I am not using that skin right now, I am in skin '40', so references to Standard in Skin 40 are worrying, nothing in 40 should be making reference to Standard. How do I remove this symbol and any linkage its making to the other skin?
Searching around, for some reason it has become a "Linked Mesh", but I can find no way to unlink the mesh, I never hit any button or ticked any option to Link these meshes. Automatic linking that its doing was unwanted behaviour on Spine's part.