Start the measure distance command, when 'simple distance' pops up, click on the gear icon in the upper left corner of the dialog box. Choose the option "measure distance (more)", the usual measure distance dialog will appear. Take a measurement and press OK, dialog memory should save the configuration for the next use (the full measure distance dialog should appear the next time you use it).
Like explained, you can get it back by pressing on the gear in the left top, and select the correct option. This is however a bug, and there is already a PR filed for this issue. It should go back to "Measure distance". This should be fixed in one of the upcoming versions.
Yes John. I just verified that it behaves correctly in NX10. It seems like this started happening in NX9.0.3 (PR 2249446).