Regarding Mac OS 10.13 "High Sierra" Compatibility for Sapphire

MacOS 10.13 "High Sierra" is unsupported at this time

Check out announcements from your host applications:

Autodesk:       https://knowledge.autodesk.com/support/flame-products/getting-started/

Avid:               http://avid.force.com/pkb/articles/en_US/Compatibility/macOS-10-13-High-Sierra

Nuke:              https://www.foundry.com/products/nuke/requirements 

After Effects:  https://helpx.adobe.com/ca/after-effects/system-requirements.html

Premiere Pro: https://helpx.adobe.com/premiere-pro/system-requirements.html

Notes -- Prior to upgrading to any new operating system version or host application

 - Backup your computer

 - Backup and archive projects and files

 - Make sure your host applications actually support the OS before making any updates

 - Most importantly, never upgrade your operating system and/or host application while in a middle of a project!