Apple's High Sierra operating system has changed the validation system, especially for applications downloaded from the internet. This has caused some systems to go into a 'validation loop' that stops our videoQC and 4KScope software from running, as the Apple validation never completes.  We are working on fixing this, but in the meantime, there is a way to stop the validation so our software can run.

Apple Validation Issue

If you run into this issue, removing the 'downloaded from the internet' bit will allow it to run.  This can be done by deleting the 'quarantine' bit set when it was downloaded/extracted from a download. Open a Terminal and run one of the following commands (this assumes you unpacked or copied 4KScope/videoQC to the Applications folder):

xattr -d com.apple.quarantine /Applications/4kScope.app

xattr -d com.apple.quarantine /Applications/videoQC.app

xattr -d com.apple.quarantine /Applications/sdiScope.app

Once that is set, you will be able to run the software.

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