Transponder sync problem
 

I have this problem my DirecTV reciever. Recently I started getting a
"Search for Satellite Signal" on one of recievers when I go to an even
transponder. I can make the message go away if I set my other reciever
to an even transponder. I have swapped the lines at the LNB and even
replaced (didn't swap) the receiver but I still get the same problem.
None of this make any sense to me. I figured the LNB swap would make
the identify the wiring as a fault but it stayed with the reciever.