Experiencing several issues with the parameters for the Awesome Oscillator. Changing the Based On will change the MA to use and changing the MA to use will change the Based On. To see the changes must accept and apply the change then reopen the edit (parameters) window. Relationship seems to be:
Close - WMA
Open - SMA
High - EMA
Low - SMMA
Also, in all cases, selecting a calculated Based On, (H+L)/2, (O+C)/2, (H+L+C)/3, (O+H+L+C)/4, will cause the indicator to not display.