Game Mechanics: Meditate Skill keeps resseting to 0

[Drahkon]

Character name : Duinthallion
Server : Green

I have trained my meditate skill up a few times as a Woodelf Druid (currently level 7) and every time I log back into the game, it is reset to 0. I have been training it at the Rivervale Druid GM. I don't see any pattern to it, but I've repeated it 3 times.