Navmesh Bugs in UE 5.5

Development Programming & Scripting AI
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Bug 1 :beetle:
Navmesh is not being generated on brush components. I have a couple testing levels where I use brush boxes for floors. I checked the different levels and it is only generating on static meshes. I double checked and it is working in 5.4.4.

5.5

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5.4.4

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Bug 2 :beetle:
SpawnDecalAttached causes dynamic Navmesh to rebuild.
This was also OK in 5.4.4

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Here is a video showing the bugs.

4 Likes
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This bug has been driving me insane to no end. Everytime I load my project I have to move a brush and rebuild because the navmesh doesn’t generate on load. I get that BSP’s are just building blocks meant to block out a level, but this really needs to be fixed.