Projectile Skills bug (?)

I’ve noticed with certain skills that utilise projectiles e.g. transmuted DEE, Grenado, Canister Bomb, BWC, that when I’m trying to throw them at me feet or leading targets they will fly off to the edge of the screen. I am currently leveling a Fire/Chaos Pyro with BWC and I just had 7 BWCs disappear into the ground.

Can’t seem to find anything in the bug forums but then again not sure how to word the search. Anyone else have this issue?

I’ve seen this, though not very often. But my projectiles did not disappear, they were cast at max range when I hover the cursor over my char (or whatever exactly causes this). I never had any issues when I was aiming the cursor at enemies correctly.