[TheBeast]

I did find 1 possible issue in the NPL_Hap.dat file.
The ships 3D Model has 3 MAP Channels but there are only 2 Materials specified in the Parent Node.
That leaves 1 MAP Channel without a specified texture. Since this is the last texture applied, it can result in Black Un-Textured ship.

You may be able to fix it by adding another cfg#TXR_NPL_Hap Material Node and adding that new Material to the 3D Model Parent Node Materials List.

I updated my NPL_Hap.dat and will check the Museum and let you know if that fixes it.

-=[Update]=-
After adding new Material node for cfg#TXR_NPL_Hap and adding new Material to the 3D Model Parent Node Materials list in 3 places the ship renders correctly in Museum.
Now I need to encounter one at sea again.