"COMException: Record not found on lookup" when using obfuscated .NET Standard assembly

[mahalex]

I'm using ConfuserEx to obfuscate a .NET Standard 2.0 assembly. The assembly has a class with a static array initializer. Using obfuscated assembly fails with System.TypeInitializationException in the static constructor that is generated by ConfuserEx (in order to initialize the static array field). Inner Exception says "COMException: Record not found on lookup. (Exception from HRESULT: 0x80131130)". This happens even when my ConfuserEx project does not contain any rules:

<project outputDir="." baseDir="." xmlns="http://confuser.codeplex.com">
    <rule preset="none" pattern="true" />
    <module path="TestLibrary.dll" />
</project>

Changing TargetFramework for this library from netstandard2.0 to net471 makes the problem disappear.

I understand that ConfuserEx is no longer maintained. Is there a way to turn off the protection rule that generates this static constructor for array initialization? What should I put in my project file?