While it’s not the biggest deal ever, it is kind of annoying. I noticed this using hammer with a revenant.
How to reproduce:
1) Use revenant equipped with hammer.
2) Stand centered on a mob you want to attack. (Dead center of the mob’s circle.)
3) Hit #1 and try to attack.
4) Watch absolutely nothing happen.
Workaround:
1) Move out of the mob’s circle and attack.
The workaround is easy, but it’s just kinda annoying that the weapon skill bugs out like that. Also, haven’t tested/noticed this behavior with other weapons and haven’t noticed this with other skills on the hammer. And haven’t tested/noticed this on other classes, etc.