Profiles w/ nodata are not plotted

[tviti]

Trying to use Profile tool 4.1.8 with with QGIS 3.14.15 on nixos (QT 5.14.2), and am unable to plot profiles that cross nodata regions. For example, the screenshot shows what happens when I try to select a profile that crosses off of the northern boundary of this particular DEM, but I get the same behavior whenever there are any nodata holes along-profile. Works fine otherwise though.

Apologies if this is actually the intended behavior, although I'm hoping this isn't the case (hoping to use the plugin to inspect the seams between merged/blended grids).

[dkogan]

I'm observing this when using the pyqtgraph plotting backend. When using matplotlib, it appears to work. Unideal, but at least it's a workaround.