Combustive shot bug
It’s been happening to me as well. But I’ve only noticed it since the update.
Arcing arrow does the same thing, too.
The best I can figure it is that it’s suffering from the same bug earthshaker does where if you target it to a place that has a slight slope to the ground nothing happens.
Not a bug but a odd interaction with projectile reflection/block skills such as wall of reflection, smoke screen, whirling defense ect.
Basically if the shot lands in or goes through the reflect/block skill it gets destroyed instead of reflected (since it is a ground targeted aoe).
To counter this just make sure the projectile itself lands before it makes contact with a reflect/block skill (the middle of the aoe circle indicator needs to be infront of said skill, since this is where the projectile lands).
I am unsure if it works like this with all skills, but i am 100% it interacts this way with ranger’s whirling defense – when warriors use combustive shot directly on top of me and i use wd, the whole skill disappears upon the projectile making contact with the wd animation, but i can still see the red danger circle as if the skill has landed.
I guess that part of it makes sense but it also happens to me when I am clearing a camp and there is no one else around.