Issue with creation drop-down

Something seems to have changed where when I pick proficiencies the drop down looks differently and no matter which ones I pick I can't add in expertise. There is no drop-down options for expertise, just says select one. Can't finish a character creation because of it.

I'll pick any of them. I'll add the proficiency but nothing I pick generates on the expertise drop down. 

I picked Rogue. I was just going through and doing the normal creation, custom, setup and it has happened every time. I tried on both the mobile and site and had the issue. However, I just tried and again and while the issue is still there I found if i move to the next page, like class selection to origin, and back again it will fix itself. I also found the same kind of issue when I picked race like High Elf some of the dropdowns wouldn't work unless I left that page and came back. 

Thank you. You explained this much better than I did.