Forge version: 1.12.2

When i finaly defeat the phantom knight and can pass trough the vanishing doors and etc etc,, i expected to complete the beautifull and very hard dark tower in survival and fight the Ur-Gast.

But at middle level of the dark tower (at blaze spawners), the "fireproof planks" are burning instead of being innflamable, is this a bug or theres something that i need to do to fix this?????

towerwood isnt fireproof, it just burns a lot slower than normal wood. We do still have to check if it was that way in 1.7, as that may not be intended. However, 1.12 wont be seeing the fix if its made as we dont support that version anymore.

thanks for the answer