When I look at any Thruline I always start at the top.
Evaluate is the key, simply do not accept it as correct, I accept it as Not Proven and then I look at how the person has been included.
I click on Evaluate then look at the top tree from which the Ancestry algorithm has determined the relationship.
Those presented are in a pecking order determined by what supporting information they have in their tree.
In many cases the parents of the person are different from what is in our own tree.
I then look at the next one down and evaluate them.
In this case the dates look straight off wrong, to large a number of years separate them.
I then go back to the person in our tree who is the suggested MRCA and undertake another look to see if they have had more children than I have included in our tree.
It is a bit like X-Files, trust no-one!