When Barry is in 2024, he refers to himself as being from 2017, but when he gets home and HR asks when he went to, he says eight years into the future.
When it shows H.R Jitters full of H.R's book, it shows his face as being H.R instead of his science partner from the Earth he is from. Earlier in the season he used tech to change his face. The only ones that were able to see H.R was the team since he used tech on them to see the real him.