Nvidia Shield Tablet K1 - software ver. 4.0(24.3.66.43)
Android ver. 6.0
I encountered this when fighting Justice Ironbriar. Valeros and Lini were in the same location. Valeros encountered Ironbriar, and I choose Lini to take the random monster encounter. The monster Bugbear showed up.
1) Lini's base Str is a d4
2) Valeros' Teamwork added his d4
3) I revealed an animal ally (dog or crow, I forget) for Animal Trick for a third d4
4) When I activated Beast Form and discarded a magic half plate, I got the notice that my die was changed, but I was still left with 3d4 for the combat.
Tried canceling everything, and choosing a blessing for Beast Form. Later I even reset my tablet. Which, when I loaded the game again, the blessing I discarded for Beast Form was still in my discard with no effect.