The error from the FDTD engine is below. I have tried to reinstall MPICH and FlexLM, the the problem still occurs.
Hello @qiaozhi ( @ckopetski ). I had an opportunity to briefly look into the error code, which may be caused as a result of unrecognized characters. This may explain the output in the screenshot. If you like, please feel free to send us the simulation file so we can help verify and advise with the findings. Thanks in advance.