Sitting Alioramus shake unnaturally during some emotes

Alioramus that are sitting down shake in an unnatural, unintentional looking way during parts of the broadcast/roar, threaten, and look around emotes. Their upper body suddenly jerks up and down for a moment, even if the rest of the animation doesn't have any sudden vertical movements when used while standing. In the video I also use the shake emote just to show an emote without this issue.

My Alioramus' upper body moved up and down in a way that looked very unintentional and in a way that does not occur when standing.

The body's movement during emotes should look smooth and consistent with the standing animations even when sitting down.