I am not sure why I am getting these errors.

Hello. Currently, I am implementing EKF (Extended Kalman Filter) using GTM developed by NASA. However, there was a current problem.

First, I construct a Jacobian matrix and put it in the Kalman filter block.

If an error occurs, the following error message is generated.

However, if you do not use the'From' block called'EOM_State' and use a constant block, there will be no problem.

If you use the'From' block called'EOM_State', the sensor part in GTM Simulink works strangely. Why?