Mail of Escape bug?

[Bullwinkle]

This might be my own misunderstanding, but I think Mail of Escape has a bug. The card says

 

"Bury this card to evade your encounter. You may not use this power during an encounter."

 

Which I assume means you can choose to evade before meeting the enemy (which works) but you're not supposed to be able to evade once you've started the combat. However, upon starting combat, Mail of Escape still lights up and offers me the option to bury it.

 

1.0.3, iPad Air, iOS 8.4.

[Longshot11]

Well, with most enemies, it doesn't really matter if you get na initial "Evade?" prompt, you decide to battle, but then reconsider - in these cases, it's perfectly OK if you're still able to evade (for example, Merisiel doesn't get a prompt at all - she get's both her Evade and BAckstab powers lit up and active, and up until the time she actually rolls any dice, she can select one or the other)

 

What WOULD be a bug, is if for example you encounter Wildwood Boar, you decline to evade, but then you fail his pre-combat Wisdom check and reconsider about fighting it. At this point, you're already in an encounter (initiated by your Wisdom roll), so the Mail of Escape shouldn't be working.