Game Mechanics: Light source priority not working

[BlackBellamy]

A Greater Light Stone has a higher priority than a beetle eye. That means if they're both in your inventory, your character should produce clear GLS light, not the red beetle eye light.

Here is no light source in inventory:

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Here is just the GLS in inventory:

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This is both GLS and beetle eye in inventory. The light is red - it should be clear:

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