I also suggest that you post in the Mac forum and add your computer/GUI specifications in your user profile. Afain, Macs do not have AERO themes available. Also, when you get the error message, please type it exactly as it appears so that it can be searched in the knowledge base.

For short sequences, I usually export to file (QuickTime) and import straight into Youtube... It takes a while but it is "mindless" and easy. fwiw.

Tradionally, yes. I haven’t in recent times without issues.... but if you are uncertain, definitely. Especially since you are updating from an older version. It doesn’t take much effort and you might have more peace of mind. ;)

Wow... thanks for the great thread with excellent information.

Please enter your complete system specifications on your profile page.

I suggest that you enter your system specifications in your user profile. What version are you using?

What changed? Were you on 8.5.3 before?

Thanks for the follow up. :)

Avid is pleased to announce the October release of Media Composer 2018 which is available as of today, October 24th, 2018 at 12:00 PM EST. Location : This release is available from Avid Master Accounts, Application Manager, and the Avid Download Center (login and password required). What's New file is attached. ReadMe file is HERE . Operating System

Interesting... thanks for posting this. I’ll report your findings.