Just giving this a try to model a paint system with multiple layers of paint and getting this error.
JaamSim has detected the following runtime error condition:
class com.jaamsim.ProcessFlow.SimEntity cannot be cast to class com.jaamsim.ProcessFlow.EntContainer (com.jaamsim.ProcessFlow.SimEntity and com.jaamsim.ProcessFlow.EntContainer are in unnamed module of loader 'app')
Time = 68544.000000 seconds
Programmers can find more information by opening the Log Viewer.
The simulation run must be reset to zero simulation time before it can be restarted.