We have a right-angle head setup on a 5-axis router. We discovered that when building multi-op setups in Delmia, i.e., adding new machines for each operation, the simulation breaks when the 'Head Change' feature is used. Attached are the 3dxml files with a mockup part. The 'SINGLE-OP-RIGHT-ANGLE-HEAD' file works, while the 'MULTI-OP-RIGHT-ANGLE-HEAD' file does not. If you 'Set as current' on the right-angle head behavior, the simulation doesn't work on the multi-op.