What's happened?

Wooden items do not burn as well...

It's the description of wooden items that cannot ignite from fire and lava:

• Any type of coral
• Any type of wooden pressure plate
• Any type of wooden trapdoor
• Any type of wooden door
• Any type of bed
• Any painting
• Any type of wooden sign
• Any type of banner
• Any type of mushrooms/mushroom blocks
• Crafting table, chest, loom, barrel.
• Fletching and cartography table

Wooden items that cannot ignite from fire but can disappear or fire from lava:

• Any type of sapling,
• Snow
• Wooden ladder