We had found a bug.

In world editor:
When Objects located nearly of the origin.
Select all objects and move it.
it deviated green collusion mesh (confirmed by "World Path Mesh"), sometimes.

Do you know something about it?
And, I want to know how to avoid this bug.

collusion mesh = pathfinding navmesh, you could try changing path settings if it deviates alot or some places it can be because of navmesh detail settings under - path(too little navmesh details will make the chunks it builds against larger and inaccurate, so moving 'x' distance can leave it between two points which might not be precise)

As Zervox mentioned, you could try adjusting World Path settings, "Path" tab in the World Editor.

If this is some other issue, please attach a screenshot.
Thank you

For example, the object (located at the origin of coordinates) moved to Z axis. (2nd fig.)
and next, moved back to origin location. (1st fig.)

then, half of path had disappeared.

Hi,

Sometimes you may need to wait a few seconds until World Editor finishes rebuilding paths.

If it didn't, then please attach a sample *.EsenthelProject and I will investigate.

*.EsenthelProject is not allowed to attach...
Can i send it by Email?

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Please correct the following errors before continuing:

The type of file that you attached is not allowed. Please remove the attachment or choose a different type.

You can send to my email, or you can compress with 7z/rar and attach here.

All right. Thank you.
i'll send later.

Thank you, I was able to reproduce the problem, I am working on a fix right now.

Thank you for providing the test case, Fix is now available in Source Code, Main Branch on GitHub.

it Great!
Thank you (from our staff).