In NX12.0.1, NX12.0.2, NX1847 and NX1872 and their updates when using the new "Measure" function, the old "Measure Angle (to be retired) option "Evaluation Plane: Angle in WCS X-Y Plane is not available until NX1899 (to be released in December 2019).
The old "Measure Angle (to be retired)" dialog set to Angle in WCS X-Y Plane.
Here are sample outputs from NX1899 when the Reference CSYS option is set to WCS.
This picture is the interactive GWIF (floating pop-up dialog).
Here is the information window display.
Here is the console window display.
The current solution is to continue using the "Measure Angle (to be retired)" measure tool which will continue to be included in NX up to at least NX1872 (release in June 2019) and its updates, thru November 2019. NX1872 is a primary release prior NX1899 (December 2019) which is the primary release containing the solution in Measure.
Solution
Hardware/Software Configuration
Platform: INTL64
OS: window
OS Version: 10_1507
Product: NX
Application: DESIGN
Version: V12.0.1
Function: INFO_ANALYSIS
Ref: 002-8013806