Quicktime 7.5 and ProRes issues?

[Navarro Parker]

Is anyone else running into this problem? The first few frames of any comp I render using ProRes 422 HQ will have a lighter gamma/brightness before the movie settles on the correct value?

QT 7.5 & AE 8.0.3 & 10.5.3

[James Jacksons]

After rendering , open it up in QuickTime and select Show Movie Properties. Highlight the video track then click on the Visual Settings tab. Towards the bottom left you should see Transparency with a drop-down box next to it. Select “Blend” from the menu then move the Transparency Level slider to 100%. Choose Straight Alpha from the same drop-down and close the properties window and finally Save.