I believe everyone that uses a Divine Avenger or Gran Faust has already noticed this, but I couldn't find any official reports on this.
I found another topic of someone also complaining about this here. It is from August 2012 and the issue is still there.
When the knight has his back close to a wall, ready do release the sword's charge, the magic swords it creates simply blow in front of him without doing any damage. Also, it doesn't push back monsters as it should.
I don't know if this is a requirement for both of the charges to work (have an empty space at the back), but in my opinion, and of some people as well, this seems like a glitch.
Does anyone else in here have information on the acknowledgement of this issue?
Same thing with the Polaris charge.