Vu Plus Duo not diseqc switching

So, VuPlus Duo with latest Black hole image, Tuner A Astra 2, Tuner B A/B diseqc switch with Astra2 & Hotbird.

Tuner config is correct, tried to scan Tuner B set to correct Diseqc settings, no joy.

When automatic scan is initiated, it finds hotbird & locks with good signal & BER but the box cannot see hotbird for a scan.

Any ideas? Cheers all.

Got it, changed the diseqc switch to A,B,C,D then put Astra on A & hotbird on C... thanks for the tip!