Looks fine, Accessory1 and Accessory2 are mapped with Output5 and Output6.
Be sure the buzzer works, you can use the "Test outputs" option in Output tab and move slider for manual output value change.
Why all accessory neutrals are not set to middle ? If you do a Tx Wizard it should be all centered.
When you activate the switches, the accessory slider moves in Input tab ?
What kind of buzzer do you use ?