I also experience many attack-command problems. for example: If I select the enemy's commander to attack him and the commander is moving atm, the units are moving to the place, where the commander stood when I gave the command to attack him. I hope that you understand what I mean XD. Can you confirm that error?
Area attack still is pretty buggy. Noticed this also You can vote for the issue here. Please vote They need to spend some development time on the area attack command to make it better PA#3277
I've been using area attack a lot recently... and been noticing this bug..! I shall give it an upvote