Resolve 17.4.6 Windows10. HD 1080p 23 project. If I export QT DNxHD100/85/80, the file gets taggwd as Display aspect ratio 2.40.1 and Original aspect ratio- 4x3. In Frame io it gets squeezed into a 2.4 letterbox. This is the only codec this happens with and it doesn't happen with OP1a. I'm avoiding this codec for now but just an FYI.