Lucas, do you have SR 5.1 installed?  The build number will be 10.0.5.28445 for this version.  The original Poser Pro 2014 release build did weird things with the gamma when you re-opened a scene, and sending a render to queue means that the remote machine re-opens the scene.

I didn't have the problem with SR3, so I think it's SR4 that auto adjusts gamma on image maps (which it does also whenever you duplicate a scene asset or change the materials on a duplicated asset -- it changes the gamma on every instance of that asset). I forgot about the change on scene open and just yesterday had to redo a 9 hour long render (with atmosphere, lots of vegetation transparencies, and IDL). Silly me! I'm glad to know that SR5.1 addresses this issue -- but I'm waiting until it too has been out in general release for a while, just in case it introduces other, more annoying bugs than the GC one.)

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PoserPro 2014, PS CS5.5 Ext, Nikon D300. Win 8, i7-4770 @ 3.4 GHz, AMD Radeon 8570, 12 GB RAM.