IE 4.1.2 - Crash with peculiar DDS format

[starkgate]

The following textures gives a big "load failed" when loaded individually in IE. Here is the debug log when loaded in a bulk conversion :

Output of nvddsinfo :

Flags: 0x00001007
DDSD_CAPS
DDSD_PIXELFORMAT
DDSD_WIDTH
DDSD_HEIGHT
Height: 2048
Width: 2048
Depth: 0
Mipmap count: 0
Pixel Format:
Flags: 0x00000040
DDPF_RGB
Bit count: 16
Red mask: 0x0000F800
Green mask: 0x000007E0
Blue mask: 0x0000001F
Alpha mask: 0x00000000
Caps:
Caps 1: 0x00001000
DDSCAPS_TEXTURE
Caps 2: 0x00000000
Caps 3: 0x00000000
Caps 4: 0x00000000

MASSEFFECT3.EXE_0x494AE911.zip

For the record, PS (with nvidia plugin) opens that DDS correctly, as does IrfanView.