I am playing Stormfall, Age of War. I am on the Dark Plains server. I sent a champion on a solo hunt, hunting the Undead. The champion is ranked at three stars. He did enough undead hunting to max out at level 25. Now I want to upgrade him from 3 stars to 4 stars.

I selected the Undead tab, I selected Recall Hunt. The champion in question has been recalled from solo hunting.

I selected the champion in question. I clicked the Upgrade tab. I selected three other 3 star champions to sacrifice. The Increase Rank button stays greyed out. I cannot upgrade this champion.

What do I have to do so I can upgrade this champion?

By the way, on this champion’s image is a picture of a boot with an arrow point left and right. That first showed up when this champion was selected for the solo hunt. If I put a cursor over it, it shows 'On Hunt'. Even though his hunt was recalled.