Acid Flask on Bow Hit Idol Enchant Doesn't Function

Had a tier 4 idol enchant and was using Heartseeker which was maintaining ~17 stacks of Dragonfang, and noticed after running some monolith maps that I hadn’t seen a single flask proc. Tried hitting crowds with Multishot for a while just to make sure I’d have a clear view of if it procced - still didn’t see any. Even at just 4% proc chance per hit I would have expected to see it proc at least once over a dozen-odd monos, so I’m presuming it’s a bug.
I had taken the fire flask conversion node - not sure if that may be having an effect. Haven’t tested it without the node because I didn’t want to respec my whole tree.
Have tested it without the skill on my hotbar (accidentally lol) and with - didn’t seem to make a difference either way. Did not test it without the skill specialized at all, though.
Thank you for your time.
Player.log (4.5 MB)