PlotView in ElementHost does not work.

[AELIENUS]

Steps to reproduce

I included a repo as a Zip with this issue, to make it easier to reproduce the issue. Just hit start and you should be able to see that the PlotView is not rendered inside a UserControl, which is contained in a ElementHost-Control. If i execute the same code without the ElementHost inside a WPF-Window-Control, the Plot is appearing just fine.

OxyPlot version: 2.1.0
Platform: WPF
.NET version: .NET Framework 4.7.2

Expected behaviour

I am expecting, that the PlotView is rendered and my plot is shown.

Actual behaviour

The PlotView stays blank.

OxyPlotElementHostTest.zip

[VisualMelon]

May be related to #1796 ; also see question here concerning where else this may be an issue #1797 (comment)