Q: OS X says that Compressor was modified since the code sign and won't let me launch it. Any reasoning behind this?

Hello

After updating Compressor to the most recent version (4.2), I get a message saying that Compressor was modified since the code sign and then won't let me launch it.

I have tried reinstalling Compressor restarting and updating my computer.

Any reasoning behind this problem??

Thanks

I am running OS X Yosemite 10.10.3 on a 2013 13inch MacBook Pro, 8GB RAM, 2.8GHz i7.