Heros

Was there some update that made the heros not be able to maintain enchantments??? Im trying to make me a 600/smiter with my hero.

heroes, to what i've seen, always drop their "maintained" enchantments automatically. to fix this, you need to disable their skills (left shift + click) and use them manually.

As JonnieBoi05 stated - hero's will not ever maintain enchants. As soon as they decide the enchant is not needed, they will cancel the enchants. This means they probably will keep them up in a fight if they don't need the energy and it seems you need it, but as soon as the fight is over, you don't seem to need it or they need energy for what they consider to be more important... they will end the enchants.

The only way to make them keep maintained enchants up is to disable the skills on the hero's bars and then manually activate them yourself off their bars.