Any update on this?
My team is also running into this (or an extremely similar) issue in 4.10.1.
At first it was relegated to our Character classes - a class in the middle of the inheritance chain would randomly stop referring to its skeletal mesh and reset it to that of it’s grandparent. We also saw some resetting of the collision capsule component’s values. After deleting ALL of our child classes and rebuilding them from scratch - the issue still remained. To work around, we’ve “hacked” the values to be set at runtime in the “BeginPlay” event.
Last night another Actor class chain (our weapons) started exhibiting the same issue - child class data randomly being reset to parent or grand-parent values. We’re losing valuable development time, and a bit of confidence.
Would love to help debug this in any way we can.