I’ll look at it when I get back to the computer but in the meantime before you move into the simulation section you must make sure that you click or highlight the setup on the left hand side in the browser bar. If you have multiple operations you might accidentally just have one toolpath selected when you move into simulation and it will only simulate that one path. If you click the setup it’ll simulate all the paths that are under that setup in one group.
This could be what it is but I’ll check it out when I get to the computer.