Help using fixed joints

I am dragging a rigidbody around the screen with the mouse, which has another rigidbody attached via a fixed joint. However, the joint acts like a spring joint instead of a fixed joint. I have played around with the time/physics settings of the game, as well as the mass of the objects. It is important for me to use joints instead of parenting as the objects need to be pulled apart by force. (It’s a puzzle game)

thanks for any help

Yeah ive noticed dat to fixed joint are weak when there’s to much mass on them my solution is when i want to attach object a to b i put d fixed joint on b and connect it to a instead and it works better but is still weak the only proper fix i know is parenting and if like say you want them to break you can really the rigidbody on d child and unparent it hope dis helps