frame loss issue

[Ballistic1]

OK this doesn't make any sense so I thought I would run this by other users to see if they have experienced this or I am just missing something? OK here goes
I decided to install a JR 921 receiver in my 260 ,I set it up and bind- ed with smart-safe fail-safe
all is OK and all functions operate correctly.
Now I decide to range check the system and it passes all 4 antennas show 0 fades, BUT the logger shows 20 frame losses and 0 holds
so I try it again but this time I am standing next to the plane watching the flight logger which is set to count frame losses and it is counting up as long as I hold the button on the module . I stand there and let it go to 55.It stops counting up if I release the module button.
I then check the antenna fades and all 4 antennas show 0 and 0 holds ??

so I try this 3 more times and its the same -no antenna fades ,no holds but frame losses continue
to count up while I hold the button on the transmitter module

any ideas