You can get more armor stacks by entering the map and use 5 armors, then juggle your character by clicking on the swords or chest behind the boss and keep repeating till your spell bar fills up again with more armors. This way you can try to cheese the guardians with 10 armor or more!
I've added a shortcut to queue several weeks of training in one stat. Just hold 2, 3, 4 or 5 and click the "train" button to queue that many weeks. This should make later training easier.
I met once of this situation when we do testing on KG.. But because I like to clear caches, I didn't notice of that. Maybe the updating of the game will make it cleared, I'm not sure.. Sorry for this happened.
Please update to version 1.07. This was updated: "1. Boss achievements made easier. Just finish the boss will give you items, no need to kill it once the boss appears."
There is something wrong with them yep, it's being looked on. I'll let you know if there's any news on this!