It is entirely possible I don't have the TDC locked on. I was watching some SH3 videos from Tailmange on YouTube and noticed he was using a button below the periscope/water height indicator in the attack periscope before and after entering data into the TDC. I believe he was using the OLC mod in his videos. I was looking for a similar button in the Ahnenerbe res mod but couldn't find one. I will try using ctrl+t this evening to see if that works. Hopefully I can find that button too if that is the problem
