I was playing a game of premier draft on my Mac.
I had a "Veteran Survivor" that was turned face-up from a manifest dread from a "Cursed windbreaker".
At the time of what happened, "Veteran Survivor" had 3 cards under it so it had hex proof. It also had a "Sheltered by Ghosts" on it.
I attacked with "Veteran Survivor," and in response, my opponent casted "Vanish from Sight" on the "Sheltered by Ghosts" which Resolved. But all of a sudden, my "Veteran Survivor" had an "Unable to Scream" attached to it which made it a 1/3?

It cost me the whole game ):

Could you review the log and fix any potential future issues?

The log of the game is attached.