Concern about EKF core switch If two core estimate diff large

As you guys can see that . Two EKF core output Roll , alt …etc are are no seem to be so same . such as the roll has a max 3° diff . In the whole process All the two ekf outputs are differrent . In such situation if it switch to the other core , I would cause suddenly go high when in alt or gps mode . Is it normal ? I think it is so dangerous . Is there some tools to make sure the two ekf outputs are no diff so much before it performs switing?

Making EKF results as equal as possible is kind of against the point of having it.