Mechanical Failure or Electronic Interference?

Trying to narrow down what might have happened while on an auto mission. Was flying very well until it wasn’t! Just about crashed. Then behaved again. Wish I could read logs better. Here is a couple of snapshots if anyone wants to take a gander. I also have the log if you want to see it.

Wondering if maybe this could be a sync issue? I am getting this and also a huge spike on motor 3 at the same time. Or is that just some weird input while on auto?

And one more item…
EKF and rangefinder go nuts.