Hello,

I am trying to make a contour plot (no fill, contours_coloring = â€˜linesâ€™) for a matrix of size 350x550. There are several hundred NaN values in the matrix and I am not able to generate a figure with this matrix as is. Iâ€™ve tried rendering it in a browser, saving it as a html with open default set to true and rendering it as a static image. For the last case, I get an error 525 and for the first two cases the figure is not generated at all. The figure is generated in all cases if I replace the NaNs with 0s but the contour is very messed up.

Any help is appreciated.

**Edit**: I am able to generate heatmaps with the exact same dataset no problem. It looks the way I expect it to. Same with a 3-D surface. Itâ€™s just the contour plot that has an issue.