Lustre EXR multi-channel mattes?

[Anonymous]

Lustre 2014.0.3

Utilizing '.fclut' file to import footage for color correction.

Have issues with activating embedded mattes from Open EXR 2.0 multi-channel image files.  Originally thought the issue involved having "compressed" EXRs.  We're adding shots via wiretapgateway server, saving a cut, shift + load a cut as per the manual to no avail.  Is there another way we should be activating mattes?

Our Nuke artist is able to view the matte channels whether compressed or uncompressed.  Metadata provided below for both versions of EXRs using exrheader tool.

Compressed:

UNB_RVR0032_v000003_CMP.00090.exr:

file format version: 2, flags 0x0
channels (type chlist):
    A, 16-bit floating-point, sampling 1 1
    B, 16-bit floating-point, sampling 1 1
    G, 16-bit floating-point, sampling 1 1
    R, 16-bit floating-point, sampling 1 1
    matte1.alpha, 16-bit floating-point, sampling 1 1
    matte1.blue, 16-bit floating-point, sampling 1 1
    matte1.green, 16-bit floating-point, sampling 1 1
    matte1.red, 16-bit floating-point, sampling 1 1
compression (type compression): zip, individual scanlines
dataWindow (type box2i): (0 0) - (2047 1151)
displayWindow (type box2i): (0 0) - (2047 1151)
lineOrder (type lineOrder): increasing y
nuke/node_hash (type string): "e3b1f11809c70fe4"
pixelAspectRatio (type float): 1
screenWindowCenter (type v2f): (0 0)
screenWindowWidth (type float): 1
timeCode (type timecode):
    time 12:43:47:01
    drop frame 0, color frame 0, field/phase 0
    bgf0 0, bgf1 0, bgf2 0
    user data 0x0
type (type string): "scanlineimage"
version (type int): 1

Uncompressed:

UNB_RVR0032_v000003_CMP.00090.exr:

file format version: 2, flags 0x0
channels (type chlist):
    A, 16-bit floating-point, sampling 1 1
    B, 16-bit floating-point, sampling 1 1
    G, 16-bit floating-point, sampling 1 1
    R, 16-bit floating-point, sampling 1 1
    matte1.alpha, 16-bit floating-point, sampling 1 1
    matte1.blue, 16-bit floating-point, sampling 1 1
    matte1.green, 16-bit floating-point, sampling 1 1
    matte1.red, 16-bit floating-point, sampling 1 1
compression (type compression): none
dataWindow (type box2i): (0 0) - (2047 1151)
displayWindow (type box2i): (0 0) - (2047 1151)
lineOrder (type lineOrder): increasing y
nuke/node_hash (type string): "c75cbfbcd6966db3"
pixelAspectRatio (type float): 1
screenWindowCenter (type v2f): (0 0)
screenWindowWidth (type float): 1
timeCode (type timecode):
    time 12:43:47:01
    drop frame 0, color frame 0, field/phase 0
    bgf0 0, bgf1 0, bgf2 0
    user data 0x0
type (type string): "scanlineimage"
version (type int): 1

Thanks in advance.