okay guys so first off after replacing my front seal on the transmission and taking it for a ride and after i shut off the car (95 Honda Accord Ex V-Tech) the transmission fluid started leaking pretty bad, so i did some research and found out that the 'TCC' in other words the 'lock-up valve' have got stuck not letting the fluid on the torque converter go back to the transmission but instead making it go out thru the transmission housing basically the same place as if the front seal would usually leak out of, so i changed the lock-up valve, took the car for a ride, park it and before i turn it off i look under the car and it was leaking pretty bad but when i turn it off the car the leak stop, now the car doesnt leak after shutting it down but it leaks while its running and now my question is could using an aftermarket transmission fluid make the car leak like this ???? if not what are other options to stop the leak?

Thanks a lot