Unwanted stripes visible during render (not affecting the final result)

[DinkydauSet]

I don't see this problem often but it occurs when zooming in on the largest bulb with these parameters:

{
    "programVersion": 6.0,
    "oversampling": 3,
    "screenWidth": 1200,
    "screenHeight": 800,
    "rotation": 0.0,
    "center": {
        "Re": -0.7055615234374995,
        "Im": 0.2733276367187506
    },
    "zoomLevel": 12.0,
    "maxIters": 4600,
    "juliaSeed": {
        "Re": -0.75,
        "Im": 0.1
    },
    "julia": false,
    "formula_identifier": 4,
    "post_transformation_type": 0,
    "pre_transformation_type": 0,
    "inflectionCount": 0,
    "inflectionCoords": [],
    "gradientSpeed": 17.0,
    "gradientOffset": 0.0,
    "inflectionZoomLevel": 0.0
}