Ship ID: 2640 (Iyang Maru) - ship sunk (431013) before arrival date (440303)
Ship ID: 2648 (Kako Maru) - ship sunk (440612) before arrival date (441029)
Ship ID: 2650 (Kanagawa Maru) - ship sunk (441113) before arrival date (450415)
Ship ID: 2654 (Kasei Maru) - ship sunk (440615) before arrival date (441102)
Ship ID: 2656 (Kashimasan Maru) - ship sunk (430228) before arrival date (440311)
Ship ID: 2659 (Keian Maru) - ship sunk (430922) before arrival date (440108)
Ship ID: 2660 (Keito Maru) - ship sunk (440912) before arrival date (450107)
Ship ID: 2662 (Kensei Maru) - ship sunk (440624) before arrival date (440802)
Ship ID: 2664 (Kifune Maru) - ship sunk (441223) before arrival date (450316)
Ship ID: 2670 (Koetsu Maru) - ship sunk (440408) before arrival date (440411)
Ship ID: 2673 (Koko Maru) - ship sunk (440907) before arrival date (440927)
Ship ID: 2678 (Koun Maru) - ship sunk (440912) before arrival date (450602)
Ship ID: 2680 (Kuniyama Maru) - ship sunk (431111) before arrival date (431123)
Ship ID: 2681 (Kunuki Maru) - ship sunk (440909) before arrival date (450405)
Ship ID: 2683 (Kurokamisan Maru) - ship sunk (441102) before arrival date (450127)
Ship ID: 2691 (Meiho Maru) - ship sunk (440812) before arrival date (441122)
Ship ID: 2693 (Michi Maru) - ship sunk (450102) before arrival date (450123)
Ship ID: 2697 (Mikamisan Maru) - ship sunk (441024) before arrival date (450515)
Ship ID: 2723 (Otsuyama Maru) - ship sunk (440124) before arrival date (440828)
Ship ID: 2725 (Peihua) - ship sunk (430409) before arrival date (440903)
Ship ID: 2726 (Pluto Go) - ship sunk (450323) before arrival date (450529)
Ship ID: 2734 (Samukaze Maru) - ship sunk (440103) before arrival date (450501)
Ship ID: 2742 (Shingi Maru) - ship sunk (440905) before arrival date (441031)
Ship ID: 2746 (Shinragi Maru) - ship sunk (440704) before arrival date (450501)
Ship ID: 2748 (Shinten Maru) - ship sunk (440218) before arrival date (440313)
Ship ID: 2755 (Shoyu Maru) - ship sunk (420825) before arrival date (440301)
Ship ID: 2759 (Shuyo Maru) - ship sunk (420401) before arrival date (440320)
Ship ID: 2766 (Taietsu Maru) - ship sunk (431018) before arrival date (440627)
Ship ID: 2769 (Taijo Maru) - ship sunk (440220) before arrival date (440808)
Since all of these are from CHS and none were changed, I fear this is an inherited issue. But I will fix it in RHS and look to see if it is in CHS.
This is slightly frightening: the dates are NOT the same in CHS. I wonder how they got changed? No matter - we change them back.