I too am having the same issue. MacBook Pro Late 2013 with OSx 10.11.6. I'm installed from the version downloaded directly off your website @ http://support.d-imaging.sony.co.jp/www/disoft/int/download/playmemories-home/mac/en/. Application hangs on launch.
Sony tech if you follows these forums I'm happy to do any testing you need. I'm a Systems Administrator that over see's 150 macs in a corporate enviroment so needless to say I know my way around the Mac operating system.
Looks like there is enough people experiencing crashing / hanging that it isn't just a random issue on 1 persons computer. Do you have a combined support ticket of this issue?