The bug
All blocks that can be waterlogged cannot be destroyed by flowing lava. This is certainly intended for water, but introduces illogical results in some cases when applied to lava. This is because plants that can be waterlogged and otherwise burnable blocks such as hanging roots, rails, signs and scaffolding can hold lava, at least momentarily.
✔ = yes
❌ = no
➕ = probably
➖ = probably not
❓ = unknown
Block | Intended behavior? | Relevant / related bug report(s) | Additional notes |
|---|---|---|---|
Amethyst buds/cluster | ✔ |
| |
Campfire | ➕ |
| |
Candles | ✔ |
| |
Chain | ➕ |
|
|
Chest / trapped chest | ➕ |
| |
Conduit | ➕ |
|
|
Coral (fans) | ➖ |
|
|
Dead coral (fans) | ➖ |
|
|
Dripleaf (both) | ❌ | MC-218916 describes dripleaf interaction with water, working as intended. | |
Fences | ➕ |
| For wooden fences, MC-3263 covers the flammability aspect. |
Glass panes | ➕ |
|
|
Glow lichen | ❓ | Cannot be directly destroyed, but it does burn in/near lava over time. | |
Hanging roots | ➖ |
| Cannot be directly destroyed, but it does burn in/near lava over time. |
Iron bars | ➕ |
|
|
Ladder | ➖ |
| |
Lantern | ❓ |
|
|
Leaves | ➕ | ||
Light | ✔ | Works as intended, breaking parity with Bedrock Edition due to different waterlogging mechanics. | |
Lightning rod | ➕ |
|
|
Mangrove propagule | ➖ | ||
Scaffolding | ➖ |
| |
Sculk sensor | ➕ |
|
|
Sculk shrieker | ➕ |
|
|
Sculk vein | ✔ |
| |
Sea pickle | ✔ |
| |
Signs/wall signs | ✔ |
| |
Pointed dripstone | ✔ |
| |
Rails | ❌ | Won't be fixed (though it would if this issue was fixed). | |
Trapdoors | ➕ |
| For wooden trapdoors, MC-3263 covers the flammability aspect. |
Walls | ➕ |
|
|
h3. Expected results
Blocks that can be waterlogged and are flammable or plants should be destroyed by lava instead of being able to hold it.
Linked issues
is duplicated by 4
relates to 5
MC-3263
Several blocks made of wood (Signs, Ladders, Chests, Trapdoors, Doors...) won't burn
Reopened
MC-213844
Small/Big dripleaf interacts weirdly with lava
Open
MC-109948
Lava cannot ignite certain flammable blocks
Open
MC-221590
Light Block can stop fluids
Resolved
MC-249460
Sculk Vein doesn't break from lava
Resolved
Attachments
Comments 7
This basically is just relevant for plants and flammable blocks actually, which should be destroyed by the lava. I don't know how to explain it exactly. I expect them to burn like, for example, redstone repeaters.
This also has implications for the long run. For example, if redstone components are made waterloggable in the future, they will no longer be destroyed by lava, just like what happened to rails in 1.17 (MC-228125).
I agree with your point of view, but seeing how almost all of the issues listed are WAI/WF, this would probably get resolved as WF as well, or even as FR. At least until there's a rework on how waterlogging works (if there's any) further waterlogged block additions would probably get used to stop flowing lava.
I don't see an issue here when flowing lava flows into a water logged block it just creates cobblestone I don't see why they would need to be destroyed by lava