I am not sure I am explaining this correctly. Someone must have experienced this before. When viewing the preview the texture is correct and the one that is assigned to the prop. However, when rendering the texture Poser will change the assigned texture image to another texture being used in the scene even though the texture's name is correct in the material editor.

Everything looks fine in the material editor as well as in the preview.

The only way to correct the problem is to change the prop's material name by using the group editor and renaming the texture to something else.