All is Vain~
[Teef] guild :>
[Teef] guild :>
W2Z3 icicle
The first time you have this? Try to go around to find a cracked spot and shoot at it.
At some spot further on an icicle bugged out for me and it would not fall down after taking enough hits (and it could not be damaged further either), but this was an icicle for a bauble, not needed to get to the end.
Super Adventure Vince
Icicles have multiple cracks, as well; you’ll need to hit all of the cracks before it will fall.