Using Spirit Walk as a Witch Doctor bugs out the character stats screen, and caps Resistances to 999 on the display. When you mouse over, you still see the original/real value. But as long as Spirit Walk is active, the display of Resistances is incorrect.
Repro: Have resistances over 999, then use Spirit Walk while watching the character details page.
This is a fairly low priority display issue, but it was also confusing for a while until I figured out it was Spirit Walk that was causing it.
I tested with different gear and different runes, to rule out confounding factors.