Glitch in Ice Caves of Sorrow

I just completed the mission and when the group tried to get the bonus the door blocking the way to Rornak Stonesledge wouldn't blow up no matter how many powder kegs we used.

Did anyone else have this problem or was it just my bad luck?

I hada problem with it too, dont put them too close to the door or it wont blow.

Interesting bug. I believe when I tried to do it a while back, Rornak wasn't even there on my first attempt -_-

I find that if you put it near the big pile of snow (the wall) it doesn't blow up.
But if you look closer there is a pillar to the right of it with a chain holding it all together.
Keg the pillar and it should blow up nicely, hope I helped.