You are unable to put Crimson Planks or Warped Planks in a furnace as a fuel.
You can do this for other woods but not these.
Please fix!
MCPE-114199
Warped/Crimson planks
Resolved
Duplicate
0
Duplicate of MCPE-69216. This is intended since nether wood is immune to fire, it can’t be used as fuel or turned into charcoal.