Well, I’ve got my hands on something goofey here.
Tool parts are invisible:
Even though their transparency is 0:
I noted this happened after I played a cutscene within my game where I anchored the HRP of the player and set the camera’s CameraType to Scriptable and back, though I don’t know if this has any relevance to the issue.
Changing the Transparency property from the Explorer does change it, but the tool is still not rendered.