Gem barage bug

I was playing a gem barage build in duos with the "battlecry: get a gem barage" quilboar, rylak and timewarped deios. I was playing voone with a 2nd shudderwock hero power. (The deios was copied from voone hero power)

During combat I got 10 gem barages. They were meant to buff shop 5/13 each for a total of 50/130.

At the start of my next turn I played all 10 gem barages and rolled. Each of the minions in my shop received 25/65 in stats from gem barage. As there were a lot of interactions here I am unsure what was the exact bug is. However I thought I would supply you as much information as possible. It seems that half of the gem barages failed to buff the shop.