Hey, I am experiencing the same issue. I have a DEFINE_CG_MOTION macro used in my UDF to simulate a rotating plate. I have written the UDF such that it writes the angle, velocity, time and acceleration of the plate at every time-step. However, the macro writes about 7-9 sets of data for each time-step, each with different velocity, time and acceleration data. I think this might be causing some issues with my results.nAny help/thoughts would be appreciated. Happy to keep providing more information as well. Thank you!n