--- "The Asset won't show up at all ingame" Ensure the asset is actually on your avatars hierarchy, not the scene hierarchy which is not uploaded with the avatar --- "The asset will not animate correctly" This may be caused by a masking layer in your avatars FX layer list. If you have an animation layer at the top of the list marked with an "M" for masking, it may be negatively affecting new animations below it. To fix this, drag the animation layers for the asset above the masking layer --- "my gestures seem to get stuck ever since I added the asset" You likely accidentally merged the FX package with the wrong WD setting. For example, if your avatar uses Write Defaults On for its animations, but you merged the one with write defaults off, it can negatively affect your face gestures. --- "Avatar 3.0 manager does not show up even after installing it" This seems to happen with some of the newest versions of it, try installing the 2.0.6 version instead ---"The installed asset is extremely small or extremely large" If your avatars scale is something else than 1, then the installed asset might be vastly different size, try and ensure your avatars default scale is 1