Hey, thanks for your support!
I couldn't reproduce your issue exactly but I narrowed it down to a couple of potential things (depending on what you mean by can't escape) - an issue with the wonky hack I use to wait for the shooting animation to complete before allowing turns to continue (had lots of problems with this during the week), or bad telegraphing of being out-of-energy (note also you can draw a new hand by click the draw pile!). I fixed the latter by flashing the energy cards when trying to play abilities without enough, the former I'll need some more time for... Incidentally while playing around with it I found some unrelated issues with the mage aoe, in the case when it kills another mob so fixed that too!
I have released V1.1 with these changes, thank you!