I guess it would be very helpful if those who are not having any issues could post a video of the training mission in which they input correct speed, AOB and range on the Mogami and get center of mass hits without compensating with the torpedo spread. If it works fine because you are inputing incorrect values (such as overestimating speed) into the TDC and computing a TDC solution that leads the target (with map contact updates on, the ship and the TDC solution marker will not overlap and keep pace with eachother), then it is still a bug.
Please note, all mystery is removed using map contact updates. You cannot ascribe this behavior to duds, erratic torpedos, etc, as all behavior of target, TDC and torpedoes can be observed on the attack map.
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-AKD
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