Unable to progress Rose's Syringer problem

[Whiterabbit-uk]

A friend of mine has been trying to get past part of the quest line Flavours of Mayhem where you have to shoot a Yao Guai with Rose's Syringer,. The effect increases the animals strength massively for 30 seconds then it becomes extremely weak for a further 60 seconds.

My friend has not been able to pass this part of the quest line even though he has managed to kill the Yao Guai within the 90 seconds of the syringers drug effects several times, so the quest hasn't progressed to the next stage where he has to test the effects of explosive bait.

Has anyone had this issue and if so, did you manage to sort it out?

[BizarreMan]

If I recall, you have to have the syringer equipped when you kill them. Shooting it with the syringer and then changing weapons doesn't work.

Additionally, I think at one time I accidentally ran into a dog and killed it before I got to the yao guai and it counted.

[Razer]

I think these are optional quests. So, if they bug out, no issue you can ignore them.

[Whiterabbit-uk]

Thanks for your feedback, appreciated.

I was thinking over this after I posted the above and am wondering whether my friend modded Rose's Syringer with the Karma Mod? If that hasn't been done, it would explain why the quest line hasn't moved forwards to using the explosive bait.