The last large channel is not set. Set it the way you think it should go. Just click on it and swing the channel from the side that show the 2 circles on one side. Move the one farthest to the right to swing it. This chart had an unusual start. The channel sizing was actually larger at the beginning. Now it's been pretty consistent.
Make your own predictions. Just "make it mine" to work on it the way you want. If you want to delete it, do that too. OK