The mod editor tool I found on Steam seems decent at creating modded heroes with a template, and while it has no "Open" feature to tweak those already created, the main problem is that I made 2 separate ones, and both mods load correctly. Both were keyed in for the same faction, and while the first one will reliably spawn at turn 1 (the very beginning of a new game), the second modded hero is nowhere to be found!

Is that a bug or a game-balancing feature? And in either case, how do I overcome that limitation?