NikKelly posted at 7:11 AM Tue, 16 May 2023 - #4465478

Y-Phil, thank you for that clarification.

Whatever the reason for the 1.000 / -1.000 delay, knowing there may be a delay yet it will 'come good' makes it 'usable'...

Hmmm.  I'm not in front of Poser right now, but if the Mirror U/V is separate from Scale U/V, maybe part of the problem is that Poser is doing a mathematical scaling operation in addition to mirroring it? A mirror operation should be a mathematically simpler operation, simply changing a pixel's coordinates on one axis from one side to the other.    Might be an experiment worth trying.

Also, if it's an issue of refreshing the image, try turning off all of your lights and then reversing the textures.  It shouldn't take Poser long to refresh a completely black image.  Hypothetically.