TextMeshPro - Changing text's alpha value stops my vertex effect from working. No idea why these should even be connected

Unity Engine
, ,
1

So pretty simply, I have two scripts operating on a TextMeshPro - Text component. One manipulates the vertices of the text to give it a wobble, and one changes its alpha value over time so it fades in and out. If I disable the alpha script then the wobble works fine, but if I enable the alpha script the wobble script has no effect. In my mind these should be independent so I’m not sure what the conflict is.

Wobble:

TMP_Text textComp;
Mesh mesh;
Vector3[] vertices;

private void OnEnable()
    {
        textComp = GetComponent<TMP_Text>();
    }

private void FixedUpdate()
    {
        textComp.ForceMeshUpdate();
        mesh = textComp.mesh;
        vertices = mesh.vertices;

        for (int i = 0; i < vertices.Length; i++)
        {
            float x = (Mathf.PerlinNoise(Time.time * speed + i, 0f) * 2 - 1) * wavyness;
            float y = (Mathf.PerlinNoise(Time.time * speed + i, 0f) * 2 - 1) * wavyness;
            vertices[i] += new Vector3(x, y, 0);

           textComp.UpdateGeometry(mesh, i);
        }

        mesh.vertices = vertices;
    }

Alpha:

public class AnimateFloat : MonoBehaviour
{
    [SerializeField] AnimationCurve curve;
    [SerializeField] float animationLength = 1;
    [SerializeField] UnityEvent<float> updateFloat;

    float timeElapsed;

    private void OnEnable()
    {
        timeElapsed = 0;
    }

    private void FixedUpdate()
    {
        timeElapsed += Time.deltaTime;
        updateFloat.Invoke(curve.Evaluate(timeElapsed / animationLength));
    }
}

image

I know I could have used an Animation instead of this script, but I was having the same issue with an animation so I tried this in case there was something weird going on with the animation behind the scenes.

So just to quickly reiterate: Wobbly text works on its own. Animating the alpha works on its own. If I have both scripts animate alpha works and wobbly text does not work.