Tuk,
Indeed the Mark XIV Torpedo had major problems....the background to why it had the problems it did....and the absolute refusal of those responsible for its pre-War design and testing to accept there were problems with the Torpedo and who blamed the problems on the Sub Crews...makes for interesting reading
You would think the UK Mod was running the show back then when you compare the attitudes and efforts to cover up systemic problems with aircraft in the way the US Navy safely sitting in Stateside Billets blamed operational crews.
Admiral Lockwood led the way in trying to fix the problems and deserves a lot of credit for his leadership of the Australian based Submarine operation.
https://www.historynet.com/us-torped...rld-war-ii.htm