Hi, I just installed the latest build to test the material stacking functionality. Opened one of my current work scenes and instant crash from the VFB at render time. (Cinema 4d.exe crash, close programme dialogue box) - no bug report.
Tried again to render editor window. C4d hangs at "preparing scene data". Have to then manually force c4d to quit. Reinstalled previous build, no further problems. I have a minidump file which may help.