UMG skill slot issue

Im having this problem when loading the editor:

But it should be:

its only started today and it happens every time i close the edditor

Update: ive narrowed it down to my skill data table when i add a 4th row to the table then it makes some sort of error
the information in the row is all correct any ideas what would cause this ( it works fine untill i close the editor and reopen)