The NX CAM 'CSYS' definition form for options involving plane definition was changed in NX 11 and higher revisions. This now requires an additional selection on the form to move on to successive plane definitions.
Solution
This is intentional as we have improved the plane selection to include 'flip' and 'offset'. This has the effect that the plane being defined has to be selected on the form rather than being automatic.
Notes and References
Hardware/Software Configuration
Platform: INTL64
OS: windows
OS Version: xp64
Product: NX
Application: CAM
Version: V11.0
Function: BASIC_FUNCTIONS
Ref: 001-9606686