Open Source Document Management System | OpenKM

Iam trying to import repository into another OpenKM installation.
Even if i check on "Restore UUIDs" option after import exisiting UUIDs are not retained.

OpenKM version is same while export and import of repository.

Here are my installation Details:
Cent-OS
JAVA-6
OpenKM - 5.1.9

Did you check "Metadata" when exporting repo?