Hello! I import .png image to FCP X, use Luma Keyer, invert the keyer and export in Apple ProRes 4444, tried XQ, too. After import back as a video .mov I don't have the transparency. I used this page as a guide https://larryjordan.com/articles/fcp-export-transparency/. At the first time when i tried it, it works. It is 2 weeks ago. Now it don't work. Do you have idea why?