Lots of details on the related UDN thread. In short, Navigation System is not handling properly deep component hierarchies.
I've added a test map for this to AIProject, it's ComponentHierarchyOnNavmesh. All one has to do to repro the bug is to move the red-colored component by typing in new location/rotation/scale.
error message when install in U.E 5.3 - IS-IN-FCO2-82
How does TextureRenderTarget2D get TArray<uint8> type data?
How do I set a material as a post-processing material?
UMG RichText not appear image when packaged
Why does the REMOVE method of map container remove elements have memory leaks?
How to delete some elements correctly when deleting an array loop?
What is the cause of the packaging error falling back to 'GameUserSettings' in ue5?
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-20125 in the post.