### Discussed in https://github.com/ScottPlot/ScottPlot/discussions/2187 <div type='discussions-op-text'> <sup>Originally posted by **dhgigisoave** October 20, 2022</sup> [HeatMap.txt](https://github.com/ScottPlot/ScottPlot/files/9827813/HeatMap.txt) Hi I have two strange effect on a heatmap: I attached the matrix that contains the values send to it. In line 29 I have a few consecutive values that represent the maximum in the entire serie (94,7). In the heatmap that values are represented with black pixel (as values under threshold). I think that the problem is related to colorbar, since if I change the color bar (this is the second strange problem) and I increase the steps, the heatmap plot is wrong because the yellow areas should become green, while if I decrease the steps the plot is correct. In the first image attached you can see the initial situation, in the second I increased the steps, in the third I descreased it.    </div>