Top down template colision making the actors to jump around

Hello, I need some help with my RTS project. I’m just learning UE 4 and at the moment I’ve got a problem with collision ( I think ) .
I’ve started my project with a Top Down Template and when I’m selecting 2 or more TopDownCharacters and send them to a location, if they collide ( on the way to the location or at location ) 1 or more of them get thrown upwards ( something like they would step on a spring and get blown upwards ) . This only seems to happen if both characters colliding are moving at the same time . My collision setting for the Class is OverlaponlyPawn, both for the mesh and the capsule .
Any ideeas as how to fix please?
Thanks.

Any ideeas??? Anyone???