Awning operator with flush bracket?

We have the awning operator on and it fits great on my larger window but if I put the brackets on the bottom of the sash (the only way it fits) ) it's no longer horizontal with the operator and catches the window sill ? Wondering if there is a different bracket that fits flush? If I figure this out for this window I can order more:) thx Dana

I've figured out how to place the brackets on the wood frame. When I try to crank it all the way closed it doesn't quite clear the wood frame. I can maybe make adjustments for that but there's no more room to crank the window in, meaning it's at the end of its bar the metal "rim/stopper doesn't allow it. Does this mean I have the wrong size? It's so very close to pulling tight( maybe 1/8 of an inch. I sent the old hardware pic also.