Thanks to all of you. There is lots of stuff I have to check now. @eclark1894 Yes, I use Cinema 4D r12 for building my props and i re-imported the obj file to create the morphs. I noticed that the c4d obj file is smaller in terms of the amount of kilobits. After my work around [import the file, exporting it back without touching it at all] the file size is significantly higher. If I open the file next to the original once in c4d there is no difference in faces or poly count. The geometry is still the same. Hm...strange?! I sometimes have made very special experiences with my poser version because I use a german licence on a PC, set to the german keyboard and language. This has previously caused problems a native English user did not experience. For example, in my version OP 11.1 there was no way to use the 3d-path tool. It was simply not available, not even grayed out, it was literally not in the build. I had to change the keyboard and system language to get it to work. Nowadays the problem is solved, it works properly now in the german version. But again, thank you all for your thoughts and ideas.