Chelsio T420 U-FIBER module

Not sure if this is where I should be posting this but as I am a total nube I hope I can be forgiven.
I have a Chelsio T420 installed in a home built pfSense box with UF-INSTANT modules… … when I insert the modules I get the folowing error in pfSense CXGBE0: l1cfg failed: 22. I don’t know if this is the T420 not working correctly or is it an incompatibility with the modules and the T420. Would anyone know the answer to this?