So, I check if the object is valid, and it is.
The animation “event graph” blueprint :
The animation “animation” blueprint (still be the same than before (Itried to just use one “transform” node, but the result is the same)):
The “event graph” Pawn blueprint :
I put the rotation of the barrel and the turret to 45°:
Here is the result in edition mode (I get what I want):
But when the simulation is launched, the turret and barrel don’t move with mouse movement or still have the 45°:
