Line width problem

[zsoooc]

I use MapView with zoom level = 21, pitch = 70 and I would like to set the width of the (MVTLayer) line geometry precisely. I would like to set to 8 meters. However, I recognized that the line width does not seem to change, The line width appears to be exactly the same if I set bigger lineWidth value.
For example, look a these screenshots. It is the same linestring with the same zoom, pitch and camera position.
First image: the line width is 1 m. Second: the line width is 8 m. The line width appears to be exactly the same. Why?

How can I set the line width more accurately?

This is props of the layer:

                    id: props.id + '1',
                    getPosition: d => d.geometry.coordinates,
                    getLineColor: d => [0, 0, 0],
                    lineWidthUnits: 'meters',
                    lineWidthScale: 1,
                    getlineWidth: 1

[tauseefmhta]

Which version you are using?

[zsoooc]

v8.9.35

[Pessimistress]

Are you setting lineWidthMaxPixels?

[zsoooc]

No, I didn't try set lineWidthMaxPixels.

[Pessimistress]

Can you make a Codepen that reproduces your issue?