When exporting an animation, the head rotation on the expression clip of a character is still off when importing that animation into Unity. Updated to v8.5 (8.5.3330.1), released on Oct. 4th, 2024, and the issue is still present. I saw the patch note: "When the character has Face Key Head Rotate related animation data, saving it as iMotionPlus will include incorrect head rotation data." Which is pretty much the EXACT problem I'm talking about. But, I don't believe this has been fixed for when it's exported into file types like FBX from iClone's "Export" to Unity feature (File>Export>Export to FBX). This is CRITCALLY important, and a big issue.

To reproduce the issue, you'll need to crank the head rotation, say the Head_Turn_Left, to 100 or so to REALLY see the issue (the higher the value, the higher the discrepancy). And then export that animation with the expression clip as an FBX, and then import it into Unity, then go through the animation on the timeline in Unity and you'll notice the much further the head turns to the left compared to how it looks in iClone at the same point in the animation.