Facepalm.
That "renderer" is an animation bone, part of rig, with attached light.
It can be moved, it can be culled, it can be everything.
I wish to call everything as renderer too, and feel like a pro.
"If something drawable have issues - that's renderer". Too general.
Alright-alright, we already got you're a super-pro person.
Anyway, IT'S NOT a flashlight.
I put a screenshot of culprit some messages ago. That are some placeholder meshes, when flashlight is on different place and have a different shape.
So it more like not an animation problem, or engine problem, but just a leftover.