I use spine at work and we hit a bug? snag? hidden feature? Where in a Spine file, all of the Slots have gone missing on one person's computer. Pictured is a screenshot of their Hierarchy when they open the file on their computer, and next to it on mine.
All of the character's art assets are in slots bound to the root in my scene and weighted to bones, as they should be, but when he opens the exact same Spine file with the exact same version on his computer, the Slots are all just not there, no where in the hierarchy. They exist listed in the Draw Order, but not anywhere under the Bones.
The art is still there in the scene as well, but when you select the art, it selects the Root bone in the hierarchy, unlike in my scene where it selects the slot proper.
Is this a known bug? Did he hit a hotkey that hides all your slots that we can't find again? We googled and couldn't find a solution or other case of this happening to anyone.
It turns out he had a Filter on (visible in the screenshot).
All is well and its fixed now. If anyone else has this problem, check you didn't set a filter without realizing it.