I create several projects and the relations are as following:

In short, I want to use WinUI 3.0 Desktop App to dynamically load a ClassLibrary named HelloPlugin.dll.

• Both App and HelloPlugin.dll add reference to an interface "ICommand" in PluginBase.dll
• HelloPlugin.dll implements the "ICommand" interface which includes a field of UserControl.
• HelloPlugin.dll add reference to another ClassLibrary named DataProvider.dll
• I implement a custom AssemblyLoadContext in App to dynamically load HelloPlugin.dll and code snippets is as following
  

[Bug]
I can successfully load HelloPlugin.dll in App and activate as ICommand and some fields leveraging DataProvider.dll are also loaded successfully.
However, when I invoke to get that UserControl field, it crashes at UserControl's constructor show as followings

Can you help to see if I miss anything in order to load resource of UserControl?