Interesting...what was your in-game date at the time you posted this? Judging by your post, you will move into New WHL on the 1st and own Wembley on the 16th. This could potentially minorly corrupt your save as you are not sure what the Facilities page will show. It can show no stadium, both stadiums, maybe a negative value or maybe something different entirely.
I suggest you backup your save and holiday until after the 16th to see what the changes bring. If it fails, restore your save to the point before the above edits.