Bigworm bug
 

Currently brutal maps are impossible to complete, the bigworms are invincible, nor can they cause harm, i massed this out last night but i am unsure if Sky managed to see the message.

Well I went into a Brutal map right after reading this, I have no problem damaging and killing all the worms, but with the snakes having so much HP, it's hard to actually finish the map with only one person.
But I don't see anything actually wrong with them?
Edit: I'm able to kill both Bigworms and Badworms.

It's strange, i may be too low level to kill them, as i was able to hurt one a little bit, but they still do not cause me any harm.

They are Level 66 monsters now. Your profile shows you are Level 54. You need to level up more and improve your weapons and armor.

I would suggest leveling up a bit in Immense Maps first. Brutals are now meant for Level 60 and above.

Not being able to hit them when you're low level is not a bug. Monster statistics have just changed recently. However, we may look into the fact that they're not doing damage.
We may lower their HP a little more, considering that 5 pop out for each worm killed. Thanks for making a point of it.