!!!IMPORTANT!!!: To facilitate faster and easier response to your issue please provide in addition to the description of the issue also the following information

 - OS version: e.g. SLC6
 - Compiler version: e.g GCC 6.2
 - DD4hep version: tag or commit ID, or GitHub branch
 - Reproduced by: exact steps to reproduce the problem: checkout, setup environment (Geant, ROOT versions, iLCSoft release), cmake, build, run...
 - Input: link to input files if applicable
 - Output: full build and run log output
 - Goal: A short description of what you are trying to achieve
