This is indeed correct, we by default write SR4 even if it is installed with LR4.
Just to understand better,
Are you seeing link up on the external ports and on the partner it is connected to? Or there is no link?
As far as I understand the product you got is with the LR4 transceivers. Is this correct?
Can you tell what is connected on the other side? What device is it (switch, NIC, router, and model of it if you can)?
Do you know if there is an option to enable disable FEC?
Can you test the same with SR4 transceivers or you don’t have such?