Japanese transports run into Allied stealth ships...
Actually, it's because IJN's fleets were so large, WPO did not visually load Royal Navy battleships that snuck up on them...

Japanese have quickly resolved this issue by splitting up their transports.
AFTER ACTION REPORTS FOR 11/11/22
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Night Time Surface Combat at 56,95
Japanese Ships
AK Ehime Maru
AP Eihuku Maru
AP Eli Maru
AK England Maru
AP Enju Maru
AK Florida Maru, Shell hits 2, on fire, heavy damage
AK France Maru
AP Fusemi Maru
AP Genkai Maru
AK Genoa Maru
AP Ginyo Maru
AP Giyu Maru
AP Gokoku Maru, Shell hits 38, and is sunk
AP Gosei Maru
AK Gosyu Maru
AP Gotake Maru
AK Goyo Maru, Shell hits 19, and is sunk
AP Gyoko Maru
AP Haaburu Maru
AK Hague Maru
AP Haguro Maru
AP Hakka Maru
AK Hakodate Maru
AK Hikosan Maru
AK Hitati Maru
AK Kazuura Maru
AP Keisho Maru
AK Kenyo Maru
AK Kinai Maru
AP Kinjosan Maru
AK Kinka Maru
AK Kinkasan Maru
AK Kinryo Maru
AP Kinryu Maru
AK Kinugasa Maru
AP Kiyozumi Maru
AP Kizan Maru
AP Koan Maru
AP Koei Maru
AP Kogi Maru
AP Kofuku Maru, Shell hits 15, and is sunk
AP Kogyo Maru
AK Kohuku Maru
AK Koki Maru
AK Kokuyo Maru
AK Komaki Maru
AP Komeyama Maru
AK Kongo Maru
AP Konan Maru
AP Konzan Maru
AK Kosei Maru
AP Koshin Maru
AP Koshu Maru #2
AP Koshu Maru #3
AP Kotobuki Maru #3
AP Kotobuki Maru #5
AK Kotoku Maru
AP Koyo Maru
AP Kyosei Maru
AK Koyu Maru
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Naval bombardment of Thursday Island, at 49,90 - Coastal Guns Fire Back!
11 Coastal gun shots fired in defense.
Japanese Ships
CL Chikuma, Shell hits 1
CL Tsugaru
CL Yahagi
BB Nagato
CL Tsushima
CL Tone
BB Aki
Allied ground losses:
189 casualties reported
Guns lost 1
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Ground combat at Thursday Island
Japanese Bombardment attack
Attacking force 6936 troops, 16 guns, 0 vehicles, Assault Value = 468
Defending force 15026 troops, 80 guns, 0 vehicles, Assault Value = 285
Allied ground losses:
12 casualties reported
--------------------------------------------------------------------------------
Ground combat at Thursday Island
Allied Bombardment attack
Attacking force 12079 troops, 63 guns, 0 vehicles, Assault Value = 285
Defending force 18869 troops, 73 guns, 0 vehicles, Assault Value = 468
Japanese ground losses:
72 casualties reported
Guns lost 2
AFTER ACTION REPORTS FOR 11/12/22
--------------------------------------------------------------------------------
Night Time Surface Combat at 56,95
Japanese Ships
AK Ehime Maru, Shell hits 23, and is sunk
AP Eihuku Maru
AP Eli Maru
AK England Maru
AP Enju Maru
AK France Maru
AP Fusemi Maru, Shell hits 46, Torpedo hits 1, on fire, heavy damage
AP Genkai Maru
AK Genoa Maru
AP Ginyo Maru
AP Giyu Maru
AP Gosei Maru
AK Gosyu Maru
AP Gotake Maru
AP Gyoko Maru
AP Haaburu Maru
AK Hague Maru
AP Haguro Maru
AP Hakka Maru
AK Hakodate Maru
AK Hikosan Maru
AK Hitati Maru
AK Kazuura Maru
AP Keisho Maru
AK Kenyo Maru
AK Kinai Maru
AP Kinjosan Maru
AK Kinka Maru
AK Kinkasan Maru
AK Kinryo Maru
AP Kinryu Maru
AK Kinugasa Maru
AP Kiyozumi Maru
AP Kizan Maru
AP Koan Maru
AP Koei Maru
AP Kogi Maru
AP Kogyo Maru
AK Kohuku Maru
AK Koki Maru
AK Kokuyo Maru
AK Komaki Maru
AP Komeyama Maru
AK Kongo Maru, Shell hits 33, and is sunk
AP Konan Maru
AP Konzan Maru
AK Kosei Maru
AP Koshin Maru
AP Koshu Maru #2
AP Koshu Maru #3
AP Kotobuki Maru #3
AP Kotobuki Maru #5
AK Kotoku Maru
AP Koyo Maru
AP Kyosei Maru
AK Koyu Maru
AK Kozan Maru
AP Manila Maru
AP Manzyu Maru
AP Shoho Maru
AP Miyako Maru, Shell hits 2
AP Peking Maru, Shell hits 2, on fire
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Ground combat at Thursday Island
Japanese Bombardment attack
Attacking force 6910 troops, 14 guns, 0 vehicles, Assault Value = 468
Defending force 15223 troops, 81 guns, 0 vehicles, Assault Value = 290
--------------------------------------------------------------------------------
Ground combat at Thursday Island
Allied Bombardment attack
Attacking force 12273 troops, 64 guns, 0 vehicles, Assault Value = 290
Defending force 18828 troops, 70 guns, 0 vehicles, Assault Value = 468
Japanese ground losses:
34 casualties reported
Guns lost 1
AFTER ACTION REPORTS FOR 11/13/22
--------------------------------------------------------------------------------
Naval bombardment of Thursday Island, at 49,90 - Coastal Guns Fire Back!
17 Coastal gun shots fired in defense.
Japanese Ships
CL Chikuma
CL Tsugaru
CL Yahagi, Shell hits 2
BB Nagato
CL Tsushima
CL Tone, Shell hits 2
BB Aki, Shell hits 1
Allied ground losses:
57 casualties reported
Guns lost 1
--------------------------------------------------------------------------------
Sub attack near Thursday Island at 49,90
Japanese Ships
SS No. 30, hits 1
Allied Ships
DD Broke
DD Shakespeare
DD Seymour
DD Grenville
DD Saumarez
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Sub attack near Thursday Island at 49,90
Japanese Ships
SS No. 30, hits 3
Allied Ships
DD Seymour
DD Broke
DD Shakespeare
DD Grenville
DD Saumarez
BC Princess Royal
BC Tiger
--------------------------------------------------------------------------------
Day Time Surface Combat, near Thursday Island at 49,90
Japanese Ships
BB Nagato
BB Aki, Shell hits 1, on fire
CL Yahagi
CL Chikuma, Shell hits 1
CL Tone
CL Tsushima
CL Tsugaru
DD Okikaze
DD Umikaze
Allied Ships
BC Repulse, Shell hits 1
BC Renown, Shell hits 1
BC Tiger, Shell hits 1
BC Lion, Shell hits 2
BC Princess Royal
DD Saumarez
DD Grenville
DD Seymour
DD Shakespeare
DD Broke
--------------------------------------------------------------------------------
ASW attack near Port Moresby at 53,91
Japanese Ships
DD Umi
DD Kaede
DD Tsuta
Allied Ships
SS S-35, hits 1
--------------------------------------------------------------------------------
Ground combat at Thursday Island
Japanese Bombardment attack
Attacking force 6876 troops, 14 guns, 0 vehicles, Assault Value = 468
Defending force 15189 troops, 79 guns, 0 vehicles, Assault Value = 294
--------------------------------------------------------------------------------
Ground combat at Thursday Island
Allied Bombardment attack
Attacking force 12218 troops, 63 guns, 0 vehicles, Assault Value = 294
Defending force 18821 troops, 72 guns, 0 vehicles, Assault Value = 468
Japanese ground losses:
42 casualties reported
Guns lost 1