
I'm thinking the Blue is definitely the blood or direct relationship, but the Red appears to be in laws through marriages, then that leaves Green as a mystery?
I see I"m related to Anne Boleyn through marriage (in laws), but most of the way to get to her, is blue until we hit Henry.
Now (without asking), they give me a direct shorter path (all blue), to Anne Boleyn, the unfortunate woman executed by beheading by her husband :(
a 2nd cousin, 14 generations removed!
Geni is dynamic so paths do change. I have no way of identifying the changes you mention, or why, because I’m not you. :)
My suggestion is to walk the links (path) to the relatives and inspect.
See https://www.geni.com/projects/Working-with-Relationships/17570