There, the light from the lighter isn't centered on the player
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That's really really weird, and no one else has reported that behavior. It should stay perfectly centered on the player at all times. Does the position fix if you toggle the lighter on and off? I'm guessing it's something different about your GPU -- any idea what your hardware is?
If you're willing to go the extra mile, I could send you a copy of the game with some debug logging added to help me understand the issue. If you're not willing to do that then I 100% understand. Thank you so much for your patience so far in helping me figure out what's going on. I intend to use this lighting system in other games so I definitely wanna get it fixed for you.