If you are working with Avid 8.6 and are running into crashing issues when Avid is launched, try following these steps:

• Close Avid
• Download and extract this file
• Open a Finder window and select Go > Go to Folder...
• Type or copy & paste in this file path: /Library/Application Support/Avid/AVX2_Plug-ins/AMA
• Overwrite the Looks_x64.avx file at this location with the one you'd just downloaded and extracted.

You should now be able to launch Avid without Looks crashing.