Comment 8 for bug 1451078

"If you would have included also a savegame, in addition to replay, saved just before the problem starts demonstrating, the bug report would have been perfect."

It does that all the time. It wasn't a problem of the saved game. All I did with the savegame was start and build an economy so I was sure I'd have resources accumulated for the labyrinth to work, because I wanted to dispel any doubt. If you want a savegame, you can just start on any map with atlanteans, save up some food, and make a labyrinth. It behaves consistently like that. You put all resources into it, it kicks out soldiers with evade 1 hp 1 def 1. you put only golden tabards into it,it consistently gives out soldiers with evade 1 and hp 1. If it only has soldiers lacking tthe defence 2 promotion, it will kkick them out most of the times instead of giving them the advanced shield. I wouldn't call it exactly a bug, more like the code being made poorly.
I experimented a lot with atlanteans micromanaging and I discovered that to have a soldier with evade 2 and hp 1 you have to put a soldier in the labyrinth with no shields or tabards until it gets the evade 2, then you can send in the golden tabard. I never found a reliable way to also get defence 2, except to just let all resources go in and wait.