NX Why some Thread standards defined in NX_Thread_Standard.xml are not displayed in the Thread Feature UI?

The NX_Thread_Standard.xml file in the UGII_BASE_DIR\ugii\modeling_standards directory provides thread data for each thread. 
But Why some Thread standards defined in NX_Thread_Standard.xml are not displayed in the Thread Feature UI?
For example: GJB119.3

Solution

There are some standards in NX_Thread_Standard.xml which has Only "Custom" Radial Engage and hence those are not displayed in New thread dialog.
The Thread feature UI does not support types with Custom radial engage, it will be OK if within the xml file the RadialEngage attribute is not set to Custom but to a numeric value (e.g. 0.7)

Then save the xml file and restart NX, then you can find the thread standard in thread featrue UI

Notes and References

IR 10112468

Hardware/Software Configuration

Platform: all
OS: n/a
OS Version: n/a
Product: NX
Application: DESIGN
Version: V1980
Function: FEATURE_MODEL

Ref: 002-8559924