Tank colliding with itself

Hello, my friend and I are developing a tank game, which the tank’s blueprint is that of a pawn, and we are facing a serious problem around collisions, most likely self collision. Basically, when the tank moves (either the IA tanks or the Player tank) it jumps around oftenly, which makes it really hard to control the tank.
The following gif shows only a simple jump, but the problem gets way worse sometimes:

Any help is appreciated,
thank you!

The most common way to handle collision like that would be to setup an ignored object channel:

And then specify how the meshes behave:

Hello, our tank is separated in Tank Body, Turret, Barrel, Right Track and Left. Both Turret and Barrel have NoCollision, when we tried your solution only on the Tracks, the tank wouldn’t move, half of it went under the floor. When we tried on the body only, nothing changed and if did it in all parts, the tank would go through the floor, basically no collision.