Hi,
I have selected the Freeze Rotation for X & Y and also tried X,Y & Z but when playing the game the ship is still able to rotate in different angles.
Noticed when i do click play the ticks disappear and i am unable to apply them during run-time.
Ive gone over the video again to check not missed anything but cant see what I’m doing wrong.
Anyone got any ideas ?
Below video showing what happens with the rocket rotating on the floor.
Cheers in advance 
The video isn’t working for me (in Opera, fwiw). I was having issues with my player object rotating in the X and Y until I captured and forced the constraints. The first thing I’d check is that both the object in-scene, as well as the prefab do have the Z-position, and XY-rotation constraints selected. If it’s still broken, you might want to try what I did with the constraints:
private RigidbodyConstraints rigidbodyConstraints;
rigidbodyConstraints = myRigidbody.constraints;
myRigidbody.freezeRotation = true;
transform.Rotate((-v) * Vector3.forward * rotationForce);
myRigidbody.freezeRotation = false; // possibly cancelling the constraints?
myRigidbody.constraints = rigidbodyConstraints; // likely, as this seems to be a fix.
Excellent, worked 
Cheers JackDraak, I will do some reading up to see exactly what this is doing but I assume this is forcing the FreezeRotation via code rather than the inspector ?
I added the below and it worked a treat :
Class member variable:
RigidbodyConstraints rigidbodyContraints;
Start()
rigidbodyConstraints = myRigidbody.constraints;
Rotation method:
rigidBody.constraints = rigidbodyConstraints;
I had to go back and check… when I commented out my line:
myRigidbody.constraints = rigidbodyConstraints;
and watched my player object in the inspector, it wasn’t long before the XY-rotation constraints were un-checked. This is a bug we should mention to @ben
When we use Ben’s code:
myRigidbody.freezeRotation = false
We’re also inadvertently clearing the rotation-constraints from the object. Therefore, we can force them back with the RigidbodyConstraints we stored in Start().
Today, i discovered the same problem. Thank you for help and work around!
Just to let you know we fix this code later in the section.