The default York configuration is being penalized for supply limitations from the 1st turn if no blocks are moved from Calais, but as the rules state Calais ought to be able to support 4 blocks and 2 local mercenaries
8.2 Exile Limits
Calais and France can each supply up to four (4) blocks, plus local mercenaries. Ireland and Scotland can supply two (2) blocks plus the local mercenary. Extra blocks (owner choice) are subject to normal Supply Penalty.