<t>Hi Samuel,<br/> <br/> I'm getting a similar error (see below) when trying to run forward dynamics. The same error occurs when the filtering process is either on or off. Any suggestions?<br/> <br/> Thanks in advance,<br/> <br/> Nils<br/> <br/> ERROR - Evaluating GCVSpline at 4.74925 outside its do...