Hi, thank you for quick response.
Yes I was working on code related to an azure function.
Here is function project info, if it helps.
<PropertyGroup>
<TargetFramework>netcoreapp3.1</TargetFramework>
<AzureFunctionsVersion>v3</AzureFunctionsVersion>
</PropertyGroup>
Function is using two other projects, both are netstandard2.0