In the recap at the beginning of the episode Jack remarks how he "finally" kissed Allison as if it was the first time, even though he previously kissed her when he was stuck in a time loop, which Allison wouldn't remember but Jack should.
At 21:28, Carter acts as though he knows that Dr. Anson had used his lab coat sleeve to clean up the biohazard spill when he holds up the lab coat and says, "With this, we find out what's going on, and we fix it," but he was not there when the spill happened, and was never told about Anson using his sleeve.