Plotly version: v1.54.5 Hello. I have found, what I believe is an inconsistence: [https://codepen.io/wandri/pen/pogdJYd](https://codepen.io/wandri/pen/pogdJYd) For a **ScatterGL plot**, - If my Y values are not a constant and with some NaN, then I have gaps in my plot. - If my Y values **are a constant** and with some NaN, then I have no gap in my plot, and my points are connected. <img width="1535" alt="Screenshot 2020-06-30 at 17 07 33" src="https://user-images.githubusercontent.com/15016833/86143092-47f13c80-baf4-11ea-8fc3-b1d99398165f.png"> (For Scatter, the gap is displayed correctly in the both case)