In the first chain, the powder kegs are visually chained and I'm the one to clearly deal damage to it, but the second doesn't blow.
The second attempt was a miss because its placement location rounded up from the wall so I'm not bad :^)
"Nice kill, you guys did it"
I did see the bug, not sure what's going on there.
I believe it is just a visual thingy. Not really a bug. It's just the consequences of the game's design, like the animation and the hitbox.
If you look at videos where skillshots somehow missed despite it being upon a champion's model, it'll often occur in areas where the elevation differs. You have to properly adjust your expectation for this.
