Roark had been having his way with bad offensive teams to get his numbers back to respectability but that didn't help.
His games with 4+ runs are vs. St. Louis, Pittsburgh, Philadelphia and Arizona, all who are pretty streaky except maybe Arizona.
I know catcher ERA is a bit fluky, but he has an ERA over 1.00 higher with Wieters compared to Lobaton. I think he'll be fine when they play together more.