Hello 

now can move jog forward, but always under the conveyor. the MU intial is at conveyor top level. but after clicl play button will go down and move forward.

Thanks a lot, I tried found the issue, according below steps.

1 remove game4automation_professional if starter version

2.delete parts4cad in the project folder

3. in the game4automation Cadenas parts4Cad to download the project need parts.