Game thinks I have captured soul of Frozen Cabins boos when I have not

I ran the frozen cabins map with a divine vessel, and captured the soul of the boss. However, right-clicking the soul did not unlock the pantheon power (100% chance to avoid being frozen) this can be seen in the pantheon screen where it is greyed out unlike the "50% reduced effect of chill" pantheon power. When I try to run Frozen Cabins again to capture the soul however, the map device refuses to start the map with "activation failed. You have already captured the Soul of this Map's Boss".

EDIT: I'm a idiot, no bug involved.