Question Why are systems not being added to my world!

After much google searching, the only forums I could find were from 2018 when the way to create and add systems to worlds were different! I am not sure If I am doing something wrong but no systems are added to my world!

Code (CSharp):

1.  private void Awake()
2.     {
3.  
4.         cellSimulationWorld = new CellSimulationWorld("Cell Simulation World");
5.  
6.         cellSimulationWorld.GetOrCreateSystem<UpdateWorldTimeSystem>();
7.  
8.         World.DefaultGameObjectInjectionWorld = cellSimulationWorld;
9.  
10.         //Start Systems
11.         var initializationSystemGroup = cellSimulationWorld.GetOrCreateSystem<InitializationSystemGroup>();
12.  
13.         initializationSystemGroup.AddSystemToUpdateList(cellSimulationWorld.GetOrCreateSystem<BeginInitializationEntityCommandBufferSystem>());
14.         initializationSystemGroup.AddSystemToUpdateList(cellSimulationWorld.GetOrCreateSystem<EndInitializationEntityCommandBufferSystem>());
15.  
16.         //update
17.         var simulationSystemGroup = cellSimulationWorld.GetOrCreateSystem<SimulationSystemGroup>();
18.  
19.         simulationSystemGroup.AddSystemToUpdateList(cellSimulationWorld.GetOrCreateSystem<CellBoundsSystem>());
20.  
21.         simulationSystemGroup.AddSystemToUpdateList(cellSimulationWorld.GetOrCreateSystem<CellBoundsSystem>());
22.  
23.         simulationSystemGroup.AddSystemToUpdateList(cellSimulationWorld.GetOrCreateSystem<CellVelocitySystem>());
24.  
25.         simulationSystemGroup.AddSystemToUpdateList(cellSimulationWorld.GetOrCreateSystem<CellHungerSystem>());
26.  
27.         simulationSystemGroup.AddSystemToUpdateList(cellSimulationWorld.GetOrCreateSystem<CellPropertiesSystem>());
28.  
29.         simulationSystemGroup.AddSystemToUpdateList(cellSimulationWorld.GetOrCreateSystem<CellStateSystem>());
30.  
31.         simulationSystemGroup.AddSystemToUpdateList(cellSimulationWorld.GetOrCreateSystem<NeuralNetworkSystem>());
32.  
33.         //Late update / rendering
34.         var presentationSystemGroup = cellSimulationWorld.GetOrCreateSystem<PresentationSystemGroup>();
35.  
36.         initializationSystemGroup.SortSystems();
37.         simulationSystemGroup.SortSystems();
38.         presentationSystemGroup.SortSystems();
39. }

CellSimulationWorlds is just a class that is derived from World.

When I play, the world looks like this:

 

from memory, add this to the end

ScriptBehaviourUpdateOrder.AddWorldToCurrentPlayerLoop(cellSimulationWorld);

 

Good memory

 

THANK YOU SO MUCH! The method was changed to ScriptBehaviourUpdateOrder.UpdatePlayerLoop