No access to Gold Boss dungeon, catching on fire when walking above said dungeon

Hello,

So pretty much what it says in the title,
I think i have completely dug out this dungeon and i cant find an entrance at all.
And randomly I will catch on fire when walking over the red tiles. Any suggestions?

Also, I noticed this is already addressed but my moas keep de-spawning too.

Definetly odd. I know that sometimes the dungeons can get generated odd. As far as the catching on fire thing, the only thing i can think is that the boss' 'aura' is somehow reaching you through the tiles of the dungeon.

The catch fire thing is normal, but there should be a entrance on a side. If not, its a generation glitch.

It's the lighted squares that catch you on fire. Any of those red blocks that look like they have runes on them will burn you if you step into them, just walk on the regular squares as you dig out the entrance and you'll be fine.

Does he get on fire because he's outside of the dungeon? Since when I fought with the boss, I didn't catch fire :O