Did you mean Ulysses shows being 5 degrees (not 15)?
The connection finder works on two types of relations - birth and marriage. Birth is for parents/children, and marriage is for spouses (this is where the connection groups change colors).
- A connection from you to your sibling is 1 degree.
- A connection from you to your Mother is 1 degree.
- A connection to your Uncle (Mother's brother) is 2 degrees.
Now, if you were truly seeing 15 degrees instead of 5 for Ulysses - there was definitely something going on there (like the system had not yet updated the connections after adding/changing a relationship, or maybe an incorrect ID typed in).