Navmesh/Level Built Data not properly loading on Editor Startup (5.5)

[SgtFlexxx]

Hi all,

I don’t know if anyone is experiencing a similar issue or not, but it seems like my level’s built data is not being properly loaded on editor startup. I have to reload the level everytime in order for the built data to be loaded. I made a small recording of the issue happening, where you can see the navmesh doesn’t load on the geometry until I reload the level. In the video, you can actually see the built navmesh briefly appear before vanishing, then requiring the reload.

2024 12 22 17 08 38

2024-12-22 17-08-38.mkv (13.6 MB)

I’ve tried deleting the built data and rebuilding it, but it doesn’t affect how the built data is loaded on startup. Any potential fix for this?

This project was migrated from 5.1 to 5.3 then to 5.5.

[SgtFlexxx]

I hate to bump this but this is really taking up a lot of time whenever I have to make header changes. Have to rebuild every editor startup. Anyone experiencing similar issues or found a workaround/fix? Even the duplicated level had the same issue. Newly added Geometry also has some really funky navmesh loading.