Placing a bucket of lava on top of a jungle tree or on top of jungle leaves directly will not light the jungle leaves on fire in any way, shape or form. However, lava flowing down on top of jungle trees from a higher place will light the leaves on fire.
Hi!
Thank you for your report!
We're already tracking this issue at MC-234622, so I will resolve and link this ticket as a Duplicate.
I suggest also to browse through the main issue for potential fixes.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
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