6909 and 6905 not working together

Hello.
I have 2 x 6909 2 x 6905
Does any one know how to fix this issue in the image below.
I have tried changing one 6905 with my spare and i get the same problem so its not the card that is faulty.
At the moment only 3 tuners out of 4 work on 1 x TBS 6905 - Not broken as same problem on an extra card.
Thank you.
I have 2 x 6909 2 x 6905
Does any one know how to fix this issue in the image below.
I have tried changing one 6905 with my spare and i get the same problem so its not the card that is faulty.
At the moment only 3 tuners out of 4 work on 1 x TBS 6905 - Not broken as same problem on an extra card.
Thank you.