Magicsat not locking on to Astra 28,2E

I have a Magicsat 2002 control unit with a 65cm motorised dish and quad LMB linked to a Freesat receiver and Sky receiver. The Magicsat has stopped locking on to Astra 28,2E. It will lock on to other satellites. I have fitted a new LMB just in case. It is finding Astra 28,2,E, maximises the signal but when it checks the satellite, it must think it is the wrong satellite because it then starts searching again.
I have checked the position of the dish with a small portable dish and the signal...

Magicsat not locking on to Astra 28,2E