Battleground Buffs remove stealth.

[Expo]

Battleground Rune Buffs remove stealth upon receiving the buff, which has been changed in 2.4.0. 

https://wowpedia.fandom.com/wiki/Patch_2.4.0#Battlegrounds

Battleground Rune Buffs: Speed, Restoration, and Berserking buffs received from battleground runes will no longer cause Stealth or Prowl to break.

 

 

[dannie]

Годное замечание

[Gensen]

Будет исправлено в следующем обновлении