Character's NetCullDistanceSquared set to 10000, then two clients move far away, charcter in different client disappeared, and never appear again

Character’s NetCullDistanceSquared set to 10000, then two clients move far away, charcters in different client disappeared, and never appear again even with very close distance. You will see invisible object block your path.

(Also, It is always appear in Listening Server.)

I don’t know what’s going wrong. Is it a bug of NetRelevancy?

I finally got what’s going wrong. NetCullDistanceSquared is calculated with Viewer’s Camera Location to the Target Character Location.

Sorry to bother you guys.