I got the problem that ViewNx crashed while using, and this happened on different macs. I uninstalled, installed, keeps crashing. I have send reports to nikon as well as to apple, nobody could help.
To keep it short, now it works again. Go to >Finder >Nikon Software >ViewNX>open map> click ViewNX Map >information>access rights>+add new and I added "administrator"
wow, now it starts up again without crash. Sometimes try and error helps.
May be anyone else had the same problem,