Questions about the "Prefer Constraints on string" option.
Solution
With this option On/Off type of constraint created is different:
"Prefer Constraints on string" = OFF
"Prefer Constraints on string" = ON
Notes and References
Hardware/Software Configuration
Platform: INTEL
OS: windows
OS Version: 10_1909
Product: NX
Application: DESIGN
Version: V1965
Function: SKETCHER
Ref: 001-10041702