User made a copy of the original
...nx10\UGII\templates\ugs_manufacturing_templates.pax file and then made custom changes to it. The original was renamed to ugs_manufacturing_templates_original.pax to try and remove it from use.
When in the File--> New--> Manufacturing dialog, all the templates choices are now repeated.
Solution
This is because NX will read and use any .pax file in this folder. Renaming the original file does not remove it from use. By the same token, you can create a custom .pax file of your own name and put it in this location, and NX will use it without having to manually hook it up or define it. The process is automatic.
To resolve this and use only the new custom .pax file, you must remove the original file or rename it using a different extension, such as
ugs_manufacturing_templates_original.oldpax
Notes and References
Hardware/Software Configuration
Platform: all
OS: n/a
OS Version: n/a
Product: NX
Application: CAM
Version: V10.0
Function: TEMPLATES
Ref: 001-7434964