For each league, in league rules, the first item "Who We Are" "Description or Name" should be where you are doing that, instead of the second item "To display a different title".
Now, do you have your copy of BLS as being owned by the league and not by you as an individual? The reason I ask that is that may be overriding things (I personally own my copies) but with a software copy owned by a league, the league name is "fixed" by BLS and can only be changed by modifying the license. I don't know if that specifically will cause what you are encountering to happen as I have never worked with a league-owned copy, but it is still a thought on my part.
Always check, download, and install the most recent update of your software to ensure that issues may have been corrected.