What's goin on with my car?! Tranny problems?

"Year & Mileage? Did you notice any transmission problems (Even tho minor) before the flush? what kind of Fluid? {They might have not tightened the Transmission Bolts Properly "New Gasket & 20 Inch Pounds Torque" on each Pan Bolt} Sounds like Vent Hoses. (Take it Back, Explain it to them and it should be Fixed/Repaired at "No Cost" to you!!!!)