Hmm... Maybe you just made a mistake with coordinates? What if you spawn another party at the same coordinates - where it will appear?
Also. When you are doing roto-translate-rescale in OpenBrf, do you see the results in the window? Because if you are moving/rotating the mesh in OpenBrf window, you usually see it moving as it changes position relative to the grid. But if your mesh isn't moving even in OpenBrf, then it's probably OpenBrf which is at fault, in this case this question would better be addressed to OpenBrf sub-forum.