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Hello,

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[4642]: 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[4642]: Fails dylib check

Which pointed me at this:

https://developer.apple.com/library/mac/technotes/tn2206/_index.html#//apple_ref/doc/uid/DTS40007919-CH1-TNTAG207

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?