OSX 10.10.5 install issue, wouldn't finish verifying

Hi:

Downloaded LO 6.0.1. Mounted dmg and drragged LO to applications folder. Start up and it started verifying. The verifying process would keep going even after the progress bar showed that it’s completed. It will never finish. Right click the icon on the dock said that the application not responding.

Any work around for this?

Thanks

Edit: The same download worked on a Mac Pro with 10.11.5 just fine.