tomloud Hi Nick, Recently upgraded my gig laptop from OSX 10.10.5 ME 3.0.2 to 10.14.6 ME 3.3.1 and I've found all the videos I had rendered as 'animation' quicktimes to get the alpha transparency thing are no longer working. Any ideas on why that would be? A missing codec or something? Or do I need to re render them? Here's an example of the file type that's coming up back ME on the new setup: https://www.dropbox.com/s/2lnj1y57jncu7o0/put%20hands%20up%20test.mov?dl=0
Nick Hi. The problem is that these legacy formats are no longer supported in the macOS 64-bit system. My suggestion would be to convert these videos to the Hap format using a FFmpeg: https://gist.github.com/dlublin/e4585b872dd136ae88b2aa51a6a89aac