Ynab Opens To The Wrong Budget

I am reasonably new to Ynab. My wife has a budget set up already called "Her Budget". Just today I made second budget for me called "His Budget". Now every time that I open Ynab it always opens to the one I made today. I have checked the box in settings that says "Open last used budget by default" but it doesn't make any difference. This will surly confuse things if it is always opening to my budget. Can someone please help? Thanks in advance