I've found a solution. I did search and replace and replaced all lines that are: g with g blah in the custom geometry lines. This fixed the missing triangle problem. The figure works great now with no missing geometry. Basically you need to eliminate any lines in your cr2 that specify a group to the default group (no group name). I did this experiment on a fresh cr2 from poser 4,03 and it worked fine. It also saved and loaded fine allowing it to create the obj file. I've notified CL and hope they put out a patch for this. In the mean time you can salvage your cr2 files by doing this simple search and replace. I may write a small exe that can do this for you on the fly as well.