Hi there,
in my last game today i played together with Greymane as partner and everything works fine first. So i can see the hand of my partner, her board and the shop but that doesn’t last. In the later game i can’t see anything from my partner, i can switch to his board and i can see his gold spending but nothing more (everything is empty). Don’t know the exact moment, where it starts. but after it starts it never change back and last at least for 4 rounds. The battle phase was normal, so i can see his board and hand only during battle in the later stages.
I made a short clip but the upload platform only make it accessible for 2 days, don’t know good options otherwise. https://streamable.com/ca3gp9
It’s very annoying to play, especially if you don’t communicate vocally with your partner.
I only had this problem once at the beginning, it’s disturbing.

Not that i’m a pro gamer (~6500 points) but it made it way harder with a random partner. I mean if you don’t have luck yourself some communication is essential for victory and therefor you need some planning. At least he communicated with pings, so i kind of guess what he want and have to mesmerize his board during battle. Probably not the sole reason for the lose but it was at least a disadvantage. 
Had it again today this time with some artefacts as well. And i missed the transition of my mate from murlocs to dragon and gave him wrong cards. https://streamable.com/evyta9
At least it’s not a common thing and only happens once in a while, still annoying 
A little moment of inattention and anyone can make a mistake. 