Hi all,
I might have found a bug regarding the Process Flow Containers.
When you don't have a single root activity inside a process flow container, FlexSim will of course throw an exception (initial situation on the left hand side).
When I move one of the two activities out of the container by mouse (drag and drop), this will solve the exception as expected (right hand side in the screenshot).
But when I move one activity out of the container by arrow keys, the software seems to think it is still inside of the container and still throws the exception.
I attached the test-model which is shown in the screenshot.
This bug at least occurs in 22.2.4 and 23.0.0
Cheers,
Mario