MotionGenesis: Macintosh GateKeeper Issue
GateKeeper was introduced in OSX 10.8 (Mountain Lion) to help block malicious applications.
Gatekeeper blocks launching of applications not meeting a certain criteria (see background below).

Example: Macintosh OSX incorrectly reports:
"MotionGenesis cannot be opened."
  • Control-click   or   right-click   on   MotionGenesisStartHere
  • Select   "Open"
  • Follow on-screen instructions.
Macintosh GateKeeper Security Manager Macintosh GateKeeper Security Manager

Alternate: Macintosh Operating System   incorrectly   reports:
"MotionGenesis is damaged and cannot be opened."
"You should move it to the Trash."

Temporarily modify Gatekeeper's default settings:
  • Go to   System Preferences   →   Security & Privacy
  • Under   "Allow Apps downloaded from:"
    Select   Anywhere.
    If necessary: Click the lock (bottom of dialog) and enter your password to allow changes.
    Confirm by pressing   "Allow from Anywhere".
  • Double click on   MotionGenesisStartHere.
  • Ensure MotionGenesis starts properly.
  • Restore the GateKeeper settings, e.g. to:
    "Mac App Store and identified developers"
Background: The new Macintosh OSX "GateKeeper" security feature is enabled by default.
It prevents unsigned applications (e.g., not distributed by the Mac App Store) from launching.
More info: Apple support webpage
Macintosh GateKeeper Security Manager