You made a very big mistake by letting the old domain expire. I have done a couple of 301 redirects for new domains and I have always succeeded.Most of my sites were fine did not even notice anything. But one that was a 2 month old domain that I did 301s from the old domain to new was hammered. It was on August 11th like one of the screen shots above.
I was going from an expensive tld to a .com cause I wanted to save money. Not sure if it is the new domain, the 301s or the old domain expired. I did all the things you are supposed to do to move a domain. But then let it expire maybe too soon.
Not sure how to fix. I might fix content there a little and wait for next update. Or look for an expired domain.
In fact the recent move I did had a boost with this update. The golden rule to moving domain is never allow the old domain expire.
