I was doing my first attack of the day, first roll: fine, second roll on same place: ILLEGAL ATTACK??!! and it ends my attacks for this turn (as punishment?). I have played this map before without a problem. Pretty big glitch. Not using this map ever again. To bad, its a great map.
The move was:
Attacking from DIOCLETIAN middle lane to ELAGABVLVS outer lane. Upon 2nd attack roll glitched.
If this was just my own misunderstanding of the rules, forgive me and flame away.