Zilean Q bomb area preview VFX rotating on weird axis

Sorry I don't have video of this, just remember spotting this in a bot game last night and have noticed that the recent backend asset re-org has resulted in various sound and VFX issues recently...

IIRC this was base Zilean, (not a skin) in co-op vs. AI The AoE explosion preview on his bombs were spinning along the PITCH or YAW instead of what I assume is supposed to be ROTATION.

Visually, this looks like a semitransparent clock disk flipping to halfway dip into the ground plane as the bomb counts down.