Nostalrius Begins - Quality wow vanilla realm (1.12)

As the title says, I am still slowed after slow debuffs wares out.

For example when players or NPCs casts slow spells like frostbolt, sometimes I still walk in slow-motion after the slow from frostbolt is gone.

The weird thing is that if I press on the 'Toggle walk/run" keybind I start to run at normal speed again.

same with disarm as well