There seems to be a problem with Hunter "Concussive Shot" (spell id: 5116). The slow debuff just won't show on the target. I have turned on and off Kui SpellList Config) as well and tried to configure it there but still it won't show no matter what I do.

Could you check to see why Concussive Shot debuff (5116) which is a slow is not working?

Do you have /knp > auras > "use default ui filter" enabled? If so try disabling that. But read the tooltip.

Okay sorry for taking so long to get back to you. Yes, that seemed to fix it by unchecking "use default UI filter". ' Why would this not be part of the default?

Thanks!

I think the default doesn't include slows, and only has hard-CCs like poly. I can't remember exactly. Either way I think this should be in there, so fixing that is delegated to this: #175