Glitchy Glitchy Glow Berry Critty

Yesterday I played a bit with Warly Glow Berry Mousse and fed it to a rabbit I collected recently. Everything worked as expected, until I handed the glowing rabbit over to another player.

As soon as the other player had it in their inventory, the glow effect disappeared. But once he handed the rabbit back to me, I started glowing again.

Later on I put the rabbit in a chest: The chest was glowing. But as soon as I closed the chest, the glow effect just disappeared. Opened it again: Glowing again.

And the last thing I did was to put it in my chef pouch. I dropped my pouch and the light disappeared. BUT: Even if I was in total darkness, I did neither loose sanity nor was attacked by Charlie. I collected the pouch again and a light appeared from far away, moving in light speed to me.

Other players claimed that they didn't see anything.