Transmission trouble?

I purchased a low milage car listed above that had been in a prior rear end collision. The car was restored by a reputable business. I bought the car with 62,000 miles on it. At about 70,000 ish. The car started slipping while driving it shifted into gear just fine. But I could feel a slip while driving. I took it to AAMCO transmission at 77,000 miles to have this issue addressed. They replaced the TCC and EPC solenoids. The transmission is a T65E. They also changed the filter and fluid in the transmission. The car did just fine, drove approximately 10,000 miles now it is doing something strange. I have never seen anything like it before and I need help. Now you can start the car and it still drives just fine, goes into gear good, everything works as it should. But after about two and a half to 3 minutes of running from a cold start you can pull the dipstick and watch transmission fluid back up out the fill tube like a geyser? I don't know much about transmissions so this to me was a mystery. Please help.