This is a fault since the early beginning of Poser and not only on a Mac but also on each Windows version. So it's a general fault and especially a absolute programming greenhorn fault not to respect given pathname only using the filename. In one runtime this error is must nerving but having some runtimes in parallel it's becoming absolute time wasting to find out what is disturbing your render such horrible. And I have posted that error round ten years back to the hotline without finding some interest (or could it be knowledge ... ?). So this is truely not new to the developers and/or users. Let's hope for the future ...