A few nations wont load after i've downloaded the update

I've downloaded the latest update and it won't allow me to pick certain nation, England, Scotland etc.

It's saying that they've found the incorrect amount of teams in certain leagues, how do I solve this?

It's almost certainly a conflict with other editor data files, like for example the licenses fix. Make sure you download the latest version(s) of any editor data files you may have.

Perhaps uploading a screenshot of your editor data folder would help identify which may potentially be causing this conflict.

or even try to delete all the files in the "Editor Data" folder and download the update again