Question: Fill tool overlaps pixels with Polygon, etc. annotations

Hello! I hope you’re doing well today.

When annotating image data, I am finding that the Fill tool for masks is working perfectly with bordering other Mask annotations, but the Fill completely overlaps with other annotation types like Polygons, Polylines, etc.

Is this intended by LabelBox? If so, what is the merit to using any other annotation type than a mask for labeling every pixel in an image? If I am doing something incorrectly as well, and there is a way to ensure the Fill tool does not create overlap with other annotation, I will be very grateful for any help or advice!