March of Fury not Working

It seems my March of Fury is not working, I upgrade it by March Capacity stays the same. What did I do wrong?

Most common mistake here is that players do not realize they need to assign the Dragon Skill to each activity they want to extend the March Capacity in the Dragon Lair. This can be done (via Dragon Skills - Assign Skills) for the Attack, Gathering and Monster categories. So if you just assign it to Attack and not to Monster and you attack a Monster or Barbarian Camp, your March of Fury increase will not be used.