Here's another bug, kind of an unusual situation:
http://www.gempukku.com/gemp-lotr/game.html?replayId=sgtdraino$ch017vwcl8gkj324
At site 8, my opponent has 1x Drawn to Its Power in play and 3x Gates of the Dead City in play. I allow Frodo to be killed, which first triggers Drawn to Its Power, since that's an automatic action. But since Frodo is dead and Sam's response hasn't happened yet, Drawn to Its Power doesn't actually add a burden (because there's no ring-bearer to add a burden to!). However, the 3x Gates of the Dead City still trigger, exerting three of my guys. I'd call this a bug, since no burden was actually added to trigger Gates of the Dead City. After those cards all key off, Sam finally took the ring with zero burdens on him.
That certainly looks like a bug to me.
The burden was never added since the first trigger
Drawn to Its Power goes off before Sam's response.
I can see this as a problem with the "required trigger effect" thingy that goes on in the gemp system. It views
Drawn to Its Power within the "system" as triggering, so even though the burden didn't hit the system allowed Gates to trigger as well.
I that this "required trigger effect" thing where the card blinks or pulses (you know what I mean) may need to be looked at in general. I think an exhausted minion still blinks at the start of a skirmish against a mounted companion, maybe someone else can back me up on this. The rules state that this trigger effect of the mount against an exhausted minion should be ignored, but i guess the system doesn't ignore it....maybe MarcinS made it so that the FP couldn't react with cards like
Unheeded to an exhausted minion "trying" to exert, but if
Unheeded does work in this case then it is bugged.
Anyway that's beside the point, but was just an example of "required trigger effect" things I've seen going haywire.