Thanks, John.
Here's another bug, which I found: when a few keyframes are added to any Generated Media or Effect, the very first keyframe becomes the last. I don't know whether this is a known bug or not, but it is very annoying. Later I'll post a sample script that demonstrates this problem.

Here is the code:

using System;

using Sony.Vegas;



class EntryPoint

{

    public void FromVegas(Vegas vegas)

    {

		PlugInNode colorPlugIn = vegas.Generators.GetChildByName("Sony Solid Color");

		Media media = new Media(colorPlugIn, "Red"); 

		media.Length = Timecode.FromSeconds(15);



                Keyframe kf = new Keyframe(Timecode.FromSeconds(5));       

		media.Generator.Keyframes.Add(kf);

		kf.Preset = "Green";

		

		kf = new Keyframe(Timecode.FromSeconds(10));		

		media.Generator.Keyframes.Add(kf);

		kf.Preset = "Blue";

		

		foreach (Keyframe k in media.Generator.Keyframes) k.Type = VideoKeyframeType.Hold;

		

		VideoTrack track = vegas.Project.AddVideoTrack();

		VideoEvent @event = track.AddVideoEvent();

		@event.Length = Timecode.FromSeconds(15);

		@event.Takes.Add(new Take(media.GetVideoStreamByIndex(0)));

    }

}

The script creates the Color Generated Media with 3 keyframes. The length is 15 seconds. First keyframe (at 00:00:00,000) is Red. Second (at 00:00:05,000) is Green. And the last keyframe (at 00:00:10,000) is Blue. Script works fine in Vegas 9. In Vegas 10 keyframes are messed up! As you can see in the following images, the first keyframe (Red) becomes the last (at 00:00:10,000), second (Green) becomes the first.

Vegas 9

Vegas 10