US torpedoes were very prone to malfunction of hitting their targets and not exploding or running wild and the technical problems were not solved till 1944....Japanese torpedoes were the best in the world.
Japanese surface action tactics were built around their torpedoes not their guns!
That was because the IJN was willing to expend lots of torpedo’s in test firings at various size target hulks, different ranges etc. to perfect the weapon. The U.S.,on the other hand, was very reluctant to waste expensive torpedoes for testing.
EVERY WW2 movie always indicates successful torpedoes .... some miss, but the ones that hit explode.