What does "LogParticles: Warning: InitializeSystem called on an unregistered component." mean?

Development World Creation
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1

Started getting a lot of these warning after switched to level streaming. Any idea where it might come from ?

LogParticles: Warning: InitializeSystem called on an unregistered component. Template=/Game/Assets/FX/weathereffects/Particles/NewParticles/P_Blizzard_Blowing.P_Blizzard_Blowing Component=/Game/3_Mylevels/Level_0-0.Level_0-0:PersistentLevel.P_Blizzard_Blowing_17.ParticleSystemComponent0
LogParticles: Warning: InitializeSystem called on an unregistered component. Template=/Game/Assets/FX/weathereffects/Particles/NewParticles/P_Blizzard_Blowing.P_Blizzard_Blowing Component=/Game/3_Mylevels/Level_0-0.Level_0-0:PersistentLevel.P_Blizzard_Blowing2.ParticleSystemComponent0
LogParticles: Warning: InitializeSystem called on an unregistered component. Template=/Game/Assets/FX/weathereffects/Particles/NewParticles/P_Blizzard_Blowing.P_Blizzard_Blowing Component=/Game/3_Mylevels/Level_0-0.Level_0-0:PersistentLevel.P_Blizzard_Blowing3.ParticleSystemComponent0
LogParticles: Warning: InitializeSystem called on an unregistered component. Template=/Game/Assets/FX/weathereffects/Particles/NewParticles/P_Blizzard_Blowing.P_Blizzard_Blowing Component=/Game/3_Mylevels/Level_0-0.Level_0-0:PersistentLevel.P_Blizzard_Blowing4.ParticleSystemComponent0
LogParticles: Warning: InitializeSystem called on an unregistered component. Template=/Game/Assets/FX/weathereffects/Particles/NewParticles/P_Blizzard_Blowing.P_Blizzard_Blowing Component=/Game/3_Mylevels/Level_0-0.Level_0-0:PersistentLevel.BP_AlienStructure_1085.P_Blizzard_Blowing
LogParticles: Warning: InitializeSystem called on an unregistered component. Template=/Game/Assets/FX/weathereffects/Particles/NewParticles/P_Blizzard_Blowing.P_Blizzard_Blowing Component=/Game/3_Mylevels/Level_0-0.Level_0-0:PersistentLevel.BP_AlienStructure_13.P_Blizzard_Blowing
LogParticles: Warning: InitializeSystem called on an unregistered component. Template=/Game/Assets/FX/weathereffects/Particles/NewParticles/P_Blizzard_Blowing.P_Blizzard_Blowing Component=/Game/3_Mylevels/Level_0-0.Level_0-0:PersistentLevel.BP_AlienStructure_913.P_Blizzard_Blowing
LogParticles: Warning: InitializeSystem called on an unregistered component. Template=/Game/Assets/FX/weathereffects/Particles/NewParticles/P_Blizzard_Blowing.P_Blizzard_Blowing Component=/Game/3_Mylevels/Level_0-0.Level_0-0:PersistentLevel.BP_AlienStructure_993.P_Blizzard_Blowing
LogParticles: Warning: InitializeSystem called on an unregistered component. Template=/Game/Assets/FX/weathereffects/Particles/NewParticles/P_Blizzard_Blowing.P_Blizzard_Blowing Component=/Game/3_Mylevels/Level_0-0.Level_0-0:PersistentLevel.BP_AlienStructure_17.P_Blizzard_Blowing
LogParticles: Warning: InitializeSystem called on an unregistered component. Template=/Game/Assets/FX/weathereffects/Particles/NewParticles/P_Blizzard_Blowing.P_Blizzard_Blowing Component=/Game/3_Mylevels/Level_0-0.Level_0-0:PersistentLevel.BP_AlienStructure_18.P_Blizzard_Blowing
LogParticles: Warning: InitializeSystem called on an unregistered component. Template=/Game/Assets/FX/weathereffects/Particles/NewParticles/P_Blizzard_Blowing.P_Blizzard_Blowing Component=/Game/3_Mylevels/Level_0-0.Level_0-0:PersistentLevel.BP_AlienStructure_19.P_Blizzard_Blowing
LogParticles: Warning: InitializeSystem called on an unregistered component. Template=/Game/Assets/FX/weathereffects/Particles/NewParticles/P_Blizzard_Blowing.P_Blizzard_Blowing Component=/Game/3_Mylevels/Level_0-0.Level_0-0:PersistentLevel.BP_AlienStructure_20.P_Blizzard_Blowing
LogParticles: Warning: InitializeSystem called on an unregistered component. Template=/Game/Assets/FX/weathereffects/Particles/NewParticles/P_Blizzard_Blowing.P_Blizzard_Blowing Component=/Game/3_Mylevels/Level_0-0.Level_0-0:PersistentLevel.BP_AlienStructure_21.P_Blizzard_Blowing
LogParticles: Warning: InitializeSystem called on an unregistered component. Template=/Game/Assets/FX/weathereffects/Particles/NewParticles/P_Blizzard_Blowing.P_Blizzard_Blowing Component=/Game/3_Mylevels/Level_0-0.Level_0-0:PersistentLevel.BP_AlienStructure_22.P_Blizzard_Blowing
LogParticles: Warning: InitializeSystem called on an unregistered component. Template=/Game/Assets/FX/weathereffects/Particles/NewParticles/P_Blizzard_Blowing.P_Blizzard_Blowing Component=/Game/3_Mylevels/Level_0-0.Level_0-0:PersistentLevel.BP_AlienStructure_23.P_Blizzard_Blowing
LogParticles: Warning: InitializeSystem called on an unregistered component. Template=/Game/Assets/FX/weathereffects/Particles/NewParticles/P_Blizzard_Blowing.P_

2

I’ve got the same problem also since I use level streaming!

3

Any feedback here ? this still seems to be there in 4.22.3.