Sorry for the delay.
I've looked again at the 3D view in DWedit, the platforms that show the missing .bmp are: ElBrus, Koni, Sailboat, Sailboat2 and Yatch... but the queer thing is that this doesn't happen always! After the error, DWedit crashes, if I open it again and go directly to one of this platforms, all textures are in place
So... who knows, maybe is a DWedit issue.
A question: have you changed something with EMCOM? I put an AI FFG at EMCOM. She's not using active sonar, but I receive ESM signal.