Same thing happened to me yesterday in the north west approaches part of the game, seven ships sunk but only 6 shown on the map.
If it happens again, I will try to do the above.
My mods are-
Generic Mod Enabler - v2.6.0.157
[C:\Ubisoft\Silent Hunter 5\MODS]
Magnum_Opus_v0_0_1
IRAI_0_0_30_ByTheDarkWraith
IRAI_0_0_30_No_hydrophone_on_surface_No_Aircraft_s potting
FX_Update_0_0_19_ByTheDarkWraith
NewUIs_TDC_6_8_0_ByTheDarkWraith
OPEN HORIZONS II_full v1.5
TDW_Mines_Subnets_Detectable_in_hydro (OH II v1.5)
OHII v1.5 Full Patch3b
OH II Campaign Radio Messages v4
OH II Minefield map
NOZAURIO'S SKIN (Standar No Emblem) v-1.0.0
KZS Hull wetness for U-Boats + co tower and deck_revised_by_TheDarkWraith
SUB - sumarines caustics NSS_Uboat7a NSS_Uboat7bNSS_Uboat7cNSS_Uboat7c41
Dark_Interior_V1
Church's SHV 1.01 Keyboard Commands v1.1
Menu - Das Boot Alarm Theme
Goodbye Pacman
sobers best ever fog V2 SH5
sobers real trees
Small_trees_SH5_V1
MCCD_1.04_MFCM_1.2.1_compatible
DBSM_Music_1_0_4
Torpedo Splash
Diesel
