I've noticed before when playing cards that have a movement and an attack that you can move even if once you're done there won't be any enemies in range. Normally you move, then click Done in the lower right hand corner. Just now I played Lunging Thrust and moved, but then the game wouldn't give me the Done prompt. It keeps asking me to select a target, but none are in range. Nothing I click on helps.
If you have the game still up - open the console (f1) maximize it (f1 again) and copy the content so the devs can track the bug, if there is any. Last round should be enough. Unless you happen to have allies in your range? Then you have to select them, sadly.
