Packing game issue with Mass AI

Hi guys,

I hope you are well.

I’m trying to pack my game since a while now but I always encounter this error that says I have 0 mass and is related with Chaos properties.
I am using in two maps with a crowd of NPC that uses a mass spawner, I checked in the npc and they both has a mass of 80kg so I don’t know what else to do, any ideas please?

The error itself below, thank you for your time.

"
[2024.04.29-22.38.56:520][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: begin: stack for UAT
[2024.04.29-22.38.56:520][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: === Handled ensure: ===
[2024.04.29-22.38.56:520][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error:
[2024.04.29-22.38.56:520][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: Ensure condition failed: NewMP.Mass > (1.e-8f) [File:D:\build++UE5\Sync\Engine\Source\Runtime\Experimental\Chaos\Private\Chaos\MassProperties.cpp] [Line: 301]
[2024.04.29-22.38.56:520][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: CombineWorldSpace: zero total mass detected
[2024.04.29-22.38.56:520][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: Stack:
[2024.04.29-22.38.56:520][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbe0167f25 UnrealEditor-Chaos.dll!UnknownFunction
[2024.04.29-22.38.56:520][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbe0164d8b UnrealEditor-Chaos.dll!UnknownFunction
[2024.04.29-22.38.56:520][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbd8a0aa4c UnrealEditor-Engine.dll!UnknownFunction
[2024.04.29-22.38.56:520][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbd89e6c8a UnrealEditor-Engine.dll!UnknownFunction
[2024.04.29-22.38.56:520][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbd8af7a5b UnrealEditor-Engine.dll!UnknownFunction
[2024.04.29-22.38.56:520][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbd8a9340c UnrealEditor-Engine.dll!UnknownFunction
[2024.04.29-22.38.56:520][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbd8a465af UnrealEditor-Engine.dll!UnknownFunction
[2024.04.29-22.38.56:520][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbd89e5c70 UnrealEditor-Engine.dll!UnknownFunction
[2024.04.29-22.38.56:520][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbd8af7e49 UnrealEditor-Engine.dll!UnknownFunction
[2024.04.29-22.38.56:520][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbd8a45500 UnrealEditor-Engine.dll!UnknownFunction
[2024.04.29-22.38.56:520][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbd8a45c27 UnrealEditor-Engine.dll!UnknownFunction
[2024.04.29-22.38.56:520][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbd8f8d54a UnrealEditor-Engine.dll!UnknownFunction
[2024.04.29-22.38.56:520][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbd8f8d9bb UnrealEditor-Engine.dll!UnknownFunction
[2024.04.29-22.38.56:520][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbd8f83dbd UnrealEditor-Engine.dll!UnknownFunction
[2024.04.29-22.38.56:520][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbd8f8fdf2 UnrealEditor-Engine.dll!UnknownFunction
[2024.04.29-22.38.56:520][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbd7acd260 UnrealEditor-Engine.dll!UnknownFunction
[2024.04.29-22.38.56:530][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbd7b19dc6 UnrealEditor-Engine.dll!UnknownFunction
[2024.04.29-22.38.56:530][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbd72ced30 UnrealEditor-Engine.dll!UnknownFunction
[2024.04.29-22.38.56:530][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbd8266d3f UnrealEditor-Engine.dll!UnknownFunction
[2024.04.29-22.38.56:530][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbd9574042 UnrealEditor-Engine.dll!UnknownFunction
[2024.04.29-22.38.56:530][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbd54776fc UnrealEditor-UnrealEd.dll!UnknownFunction
[2024.04.29-22.38.56:530][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbd548df55 UnrealEditor-UnrealEd.dll!UnknownFunction
[2024.04.29-22.38.56:530][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbd52161a1 UnrealEditor-UnrealEd.dll!UnknownFunction
[2024.04.29-22.38.56:530][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbd51f90ce UnrealEditor-UnrealEd.dll!UnknownFunction
[2024.04.29-22.38.56:530][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbd522295a UnrealEditor-UnrealEd.dll!UnknownFunction
[2024.04.29-22.38.56:530][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbd5221e97 UnrealEditor-UnrealEd.dll!UnknownFunction
[2024.04.29-22.38.56:530][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbd4f0fe50 UnrealEditor-UnrealEd.dll!UnknownFunction
[2024.04.29-22.38.56:530][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbd4ecf323 UnrealEditor-UnrealEd.dll!UnknownFunction
[2024.04.29-22.38.56:530][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffbd4eedc6f UnrealEditor-UnrealEd.dll!UnknownFunction
[2024.04.29-22.38.56:530][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff7912e733f UnrealEditor-Cmd.exe!UnknownFunction
[2024.04.29-22.38.56:530][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff7912dcfb6 UnrealEditor-Cmd.exe!UnknownFunction
[2024.04.29-22.38.56:530][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff7912dd37a UnrealEditor-Cmd.exe!UnknownFunction
[2024.04.29-22.38.56:530][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff7912e0854 UnrealEditor-Cmd.exe!UnknownFunction
[2024.04.29-22.38.56:530][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff7912f6984 UnrealEditor-Cmd.exe!UnknownFunction
[2024.04.29-22.38.56:530][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ff7912f8eb6 UnrealEditor-Cmd.exe!UnknownFunction
[2024.04.29-22.38.56:530][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffcb81b7344 KERNEL32.DLL!UnknownFunction
[2024.04.29-22.38.56:530][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: [Callstack] 0x00007ffcb9da26b1 ntdll.dll!UnknownFunction
[2024.04.29-22.38.56:530][998]UATHelper: Packaging (Windows): LogInit: Display: LogOutputDevice: Error: end: stack for UAT"

Please any ideas? I am really desperate and not sure what to try :frowning: