Hi BBW, I do get myself in deep water sometimes!
Could it be that the following are GWX files:
Turm9c_4_hd.dat
Turm9c_5_hd.dat
and the U-boats (all) are stock or Furbars?
I'm never sure of the relationship of the various files but since the two I mention are in the "Objects folder", I replaced all the other stock u-boat files here but for some reason overlooked these, I would presume this may be the problem.
I'm basically running GWX with stock u-boats.
Thanks.
Edit: Just discovered that these two files don't exist in stock, maybe I should just delete them?