I found the problem. When you open a new plot, it loads the saved theme (setTheme in plot.cpp). This theme is from the previous version, as it will be for our current users. If I don't load this theme the regen works fine. Since you don't have the theme, it's not being loaded for you. So, how can I ...

I uploaded a sample project (bugEmSize.zip)

To see the problem first open a plot
File->New XY or the New XY Plot toolbar button.

Then right click in the plot and select Customize. Add a series, make it a line, and use random data.

Then from the top menu select Edit->Regenerate Plot

I just updated from 3.5.3105.20152 to 3.5.3225.32185. In the new version I'm getting an exception (text below) when I do a Refresh(). If I go back to the older version, the error goes away. Any idea what could be causing this? I don't do anything to set the fonts on the plot. So, I'm not sure what s...