“faith and fury” cannot be found

[337054940]

One year ago I played this game and everything worked just fine. This week I want to try the main campaign again, but I found a bug. After I unlock the sister Verity's skill - "faith and fury" and I saw this skill in the battle preview phase, however I cannot find this skill in the battle and of course cannot use it.
I don't understand how this happen. Is there anyone also meet with this situation and have some advice to solve this ?

[Weemdog]

Faith and Fury is not a skill that you manually activate. It is similar to the Warrior/Prime/Sang Guard ability that automatically activates a percentage of the time when you kill an enemy model. All that will show up on the action bar are any percent increases you have to Faith and Fury as a result of activating her other skills.