Hi merc4ulfate! As hauangua mentions, just to make certain, do you have any other mods installed now, or just FotRSU? When you activated the mod, had you emptied your SH4 Save folder? Do you have the LAA activated on the SH4.exe file? That is almost a necessity. What is the home port you sailed from, and what dates and locations were you when you encountered "the strange". Ships sitting low in the water can be bad spawns, which we are trying to track down, and that's a lot easier if you have an approximate location, date & time - the more accurate, the better. Don't forget to open your torpedo tubes with the "Q" key before attempting to fire.
As for adding mods to FotRSU, we're in the "beta" stage, and would prefer that you wouldn't. However, it is your computer, your game, so do as you will. However, we cannot troubleshoot things as easily if you do add more mods. That said, the ISP will not work properly with FotRSU, mostly because the "catalog" of ships is much larger than what ISP had. Compatibility is an unknown. Environmental mods could be tried, but again, compatibility is an unknown. You definitely will overwrite some important areas of FotRSU with most of them... Some of the issues you describe sound like a mod incompatibility, but could also be caused by cross-contamination from the Save folder, or not having the LAA activated. See CapnScurvy's thread
Windows10; Large Address Aware; SH4 Install. Even though it's written from a Windows 10 perspective, it does apply to include Vista 64-bit with small changes to the instructions.
