nope. not intentional - and haven't heard anything like that
what spell specifically (by name). We use Slowing Helix AA, Serpent of Vindication, or Slow Spells like: "Dreary Deeds", "Forlorn Deeds", "Shiftless Deeds", "Tepid Deeds", "Languid Pace"
for all of them we check:
- if the mob has the buff by name
- - so if we're casting "cool slow" and they currently have the debuff "cool slow", we don't recast it
- if the slow we're trying to cast has potential for being more than what they have on them (if they have a 10% slow on them and we want to cast a 50% slow, we'll try and cast the 50% slow
are you using a custom-ui? if so, which ui?