If you have an extinguished fire on top of a hopper and use a tool with silk touch to break it, it will become lit when found in the hopper/chest inventory.
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duplicates
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If you are talking about breaking a campfire with silk touch, this should always drop the lit campfire

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Hey there!
Please could you provide some screenshots or recordings of this issue occurring whilst the F3 Debug Screen is enabled. This would help myself, along with others, determine what the problem is. Thanks!