Description

Loading UWorldPartitionHLODSourceActorsFromCell takes a lot of time in editor + PIE when it contains a lot of actors per UWorldPartitionHLODSourceActorsFromCell (between 2K and 2K actors).

Steps to Reproduce

From a licensee:

  • Build a WP map
  • Setup content and HLODs to end up with between 2K and 6K actors per UWorldPartitionHLODSourceActorsFromCell 
  • Load and measure the cost of loading UWorldPartitionHLODSourceActorsFromCell when loading the map.

Have Comments or More Details?

There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-315000 in the post.

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Unresolved
CreatedAug 22, 2025
UpdatedSep 5, 2025
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