Any ideas? _______________________________________________ Do not post admin requests to the list. They will be ignored. Pro-apps-dev mailing list (Pro-apps-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/pro-apps-dev/site_archiver%40lists.a... This email sent to site_archiver@lists.apple.com I'm seeing some weird flickering on various machines, but different results (may depend on the speed of the machine - all MBPs so far) when rendering a sequence with a H.264 1080P clip (about 10s) and a software-only FxPlug applied. Throughout the rendered clip, randomly, there will be weird purple blocks - it looks like partially undecoded compressed frames. I can't reliably reproduce it on my machine but it's happening consistently on other, older machines. I've boiled down my effect to simply copy the input bitmap to the output bitmap and it's still happening.