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SN65HVD230: CAN isolator (from CAN to CAN) having problems communicating two ways

Part Number: SN65HVD230


I am trying to make a CAN isolator (from CAN to CAN), I am using the can transceiver SN65HVD230 to convert from CAN to TX, RX, and then an isolated CAN transceiver to convert it back to CAN. But when I try sending a CAN message I can only send it one way and need to short either of the two (TX, or RX) in the middle to allow the message to pass. When I have both lines connected, the message is not transferred for some reason. is there any chip that needs to be in the middle of the two CAN transceivers? or is there anything else that I am missing? Can someone please help me out?

Thank you