fame input channel unassigned

I made a j1939 frame input channel, and hooked it up to three jpins.
The jpins are configured for error checking, 0 error value.
The jfin is red with an unassigned error.

I think maybe this is caused by how I made a new function group and a new j1939 module, but I perhaps have not linked them correctly, or does this sound like another issue?
I checked through some of the forums to see a similar issue, and I saw a person had disabled the error checking as a workaround. I am hoping not to do that.