Choose an export preset that exactly matches your project settings. Example: If your project is 1920x1080 29.97p, do not export as 25p or interlaced.

is checked in the export window. If it is unchecked and the formats don't perfectly match, you will see this error. QuickTime Requirements

. It acts as a safety check, preventing the software from attempting a render that would result in corrupted or unsupported files. Grass Valley Forums Key Causes and Solutions Export/Project Mismatch