Henne likely left 2 TD's on the field that Mahomes makes. The first play he is in, 7:31 mark of the first quarter, he misses Robinson by about 5 yards. He hits him in stride, and that is an easy TD.
And then he misses Hardman if the one that is discussed by Baldinger here:
https://twitter.com/baldynfl/status/...660938240?s=21