Xamarin.Forms.UWP crash in OnLaunched() Native Toolchain ON

When build-setting "Compile with .NET Native tool chain" is ON, I get the following exceptions in Xamarin.Forms.Forms.Init(e); in OnLaunched():

Exception thrown: 'System.IO.FileNotFoundException' in System.Private.Reflection.Core.dll
Additional information: Cannot load assembly 'ClrCompression'. No metadata found for this assembly.

Exception thrown: 'System.IO.FileNotFoundException' in System.Private.Reflection.Core.dll
Additional information: Cannot load assembly 'sqlite3'. No metadata found for this assembly.

Exception thrown: 'System.IO.FileNotFoundException' in System.Private.Reflection.Core.dll
Additional information: Cannot load assembly 'ucrtbased'. No metadata found for this assembly.

I can just continue and the app seems to run fine, but when the app is installed from AppStore, it just crashes.

Any ideas?

Tom