"F9" shows me underwater, why?

[JGoldrick]

Hi to all, I was curious to know why when I press "F9", instead of "conning tower", I seem to be underwater? Also, does anyone have the link to "sub_interior_fixes, and do I really need it still? I am using the following mods in this order:

TMO-Overhaul
SP1 Charlie
SP2 Bravo
TMO Enable Uboat v3
Tmo 1.5 propfix
rsrdc 15 v371
rsrdc patch 5
opsmonsun 1.0
highres hud dials
national flags
JP ship dimension fix 1.3
sh4 merchant biyo skin
warships retextured 1.3
small radar contacts stage 1
nisgeis range and ring mod
tree mod
black smoke2
Pacific Environments 2
realistic torpedo wake for ROW
ROW sound effects v9
sobers better sand 2 for 1.5

Does anyone have a "theory"? I get crazy with these mods sometimes, but like many others of you, "Vanilla" SH4 just won't do!
Happy Hunting to all of my fellow skippers.