Not able to launch after switching OSX user

After executing the last launcher's update everything is working fine but not when I switch user on the Mac and try to launch MC again.

The message I get then is:

"Minecraft updater. Unable to start Minecraft, if you are running from a dmg, please drag to Applications and try again"

As a check I reinstalled MC on the account with the problem and then the situation is reversed: everything works fine but when I switch user I get exactly the same error.