I am encountering a bug where quest maps only works sometimes. The quest location will appear but when I go there nothing happens (no dialogue box pops up). It seem to happen with more frequency the more quest maps I use. The first 5 or so will work fine, but by the time I have used 15-20 each map has only a 50-50 shot of working. This has been happening at least as far back as the .95 series.
True, those bugs have been around for quite some time 
Also does anyone else think the quest maps are OP? It basically gives unlimited experience and high level items for your champions and henchmen.
They are only as powerful as champions, my champions always have stuff to do, so I don't think there is some fundamentally wrong with quest maps, except I find the rewards are higher than the price of the quest map itself.
Unrelated request: can we get the ability to name our henchmen?
You can rename them, here I made you a picture.

Sincerely
~ Kongdej