Game Version - WotLK

When playing my Feral Druid. The combo points always shows 1 more combo point than the target actually has.
I've tested this on my rogue, and can't replicate the same issue.

Steps to Reproduce

1. Use a combo generator ability on an enemy
2. See error (additional combo point)
3. Continue using combo points until max
4. See error (6 greyed out combo points)

Expected behavior
It always counts displays on more combo point that you actually have (unless zero), and even shows 6 at max combo points.

Yup, I was on 414, curse wasn't showing an update to the most recent version.

Are you using the latest version? There was a bug with this prior to v415, any version after this should have this issue fixed.