I've tested out of two skills today on the Spanish tree (Verbs: Future, and Spiritual). Each time I passed with two hearts. I should have been rewarded a total 84 xp (60 for verbs + 2 hearts + 20 for spiritual + 2 hearts), but I was only rewarded 80 xp. Has anyone else noticed this bug, that the heart bonus xp are not awarded when testing out of a skill?

I am playing on a Mac laptop using Google Chrome.