On OS X 10.11.3.
On launch, I get the Gatekeeper error:
“PlayOnMac” can’t be opened because the identity of the developer cannot be confirmed.
codesign --verify and --display both look good. Found this in the console:
1/21/16 5:32:10.220 AM CoreServicesUIAgent: File /Applications/PlayOnMac.app/Contents/Resources/unix/image_magick/bin/animate failed on loadCmd /ImageMagick-6.4.8/lib/libMagickCore.2.dylib
1/21/16 5:32:10.221 AM CoreServicesUIAgent: Fails dylib check
Which pointed me at this:
Looks like Gatekeeper is picky about dynamic libraries outside of the app bundle on patched OS X 10.9+ maybe?
I'm wondering if it could be a problem from the new version of OSX.
Have you installed POM before or after upgrading from OSX 10.11.2?