Mass Traffic Assertion Failed: Zone Graph Storage

Development Programming & Scripting
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I finally found a solution for Unreal Engine 5.3.2 and 5.4.4 on github.
The additional step needed is to add “Assorted Fragments” in the “CarAgent” data asset as shown below:

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The solution is explained in github at this link [GitHub - Myxcil/MassTraffic-Test: Mass Traffic plugin extracted from CitySample for UE 5.4. Trying to understand it](On Github at Myxcil/MassTraffic-Test)

The other issues I need to troubleshoot are as follows:

  1. Why do vehicles spawn in paths tagged for pedestrians?
  2. Why do some cars eventually stop?
  3. Why do some cars have random wheel meshes missing?
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