[2019] Bug: Pride Aura shows no icon when activated

That's not a bug. You get buff/debuff icons for each buff/debuff that's s affecting you. Pride, like the curse auras from Blasphemy, is an aura that doesn't apply a buff to you, but instead applies a debuff to enemies. That debuff isn't on you, so you don't have the icon for it.

The swirly bits on the skill icon are to indicate that the aura is on, the buff/debuf icon is to indicate "this buff/debuff is applied to me an changing my stats" which Pride doesn't do to you (unless you're in range of an enemy's pride aura, in which case you'll get the icon).