Curing Villagers On Occasion causes them to reset to plains and no discount

I am playing on a server and I went to turn a jungle villager to a zombie villager, turned it, it wouldn't go back into a minecart; cured it and it turned into a plains villager (I was in a jungle at the time). I put it in a minecart, get it into it's cell and at this point is it nighttime. It linked to the bed in the cell but refused to sleep. When I gave it a work station it linked to it just fine. I click him to check what trades he has and there is no discount.