Description

When World Composition Sublevels are streamed out and back in the LODs appear distorted.

This reported and tested in 4.24.3 (CL-11590370). This was reproduced in 4.23.1 (CL-9631420), 4.25 Preview 2 (CL-12055273), and Main 4.26 (CL-12161634)

Steps to Reproduce
  1. Download and open the attached project
  2. Press Play and move around the level
  3. When a Sublevel streams out turn around and stream it back in

Results: The levels newly streamed-in are looks nice and have proper polygons,
but if the levels are streamed-out then the adjacent sub meshes's LOD is broken and have very poor polygons.

Expected: Sub levels must have proper LOD meshes

Have Comments or More Details?

There's no existing public thread on this issue, so head over to AnswerHub just mention UE-90633 in the post.

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Unresolved
ComponentTools - World Composition
Affects Versions4.23.14.24.34.254.26
Target Fix5.0
CreatedMar 13, 2020
UpdatedJan 27, 2021