Most accounts are that those failures are "rare"; the missile is sealed in a canister so it's likely to be a defective missile from the factory, not some mistake on the part of the operators.
It happens enough that there are a handful of videos on Youtube. Similar failures happen with vertically launched missiles from ships
It happens enough that there are a handful of videos on Youtube. Similar failures happen with vertically launched missiles from ships
https://www.youtube.com/watch?v=ydsm1uzkNu4