A word of caution, in the future when it isn't right after fixing things stop and take it back to get it fixed correctly, don't drive it any longer than it takes to figure out it isn't correct
I didn't focus on the moving forward in all gears on your post the first time
It is the valve body that controls fluid flow in the tranny, not the converter
I have seen problems occur after a tranny failure from not thoroughly cleaning the tranny cooler lines and tranny coolers and recirculating broken trash in them into the fresh tranny and converters Some lessons are learned the hard way, DANG IT