Extension bundled with nuget package no longer loading correctly

Describe the bug

A library I work on bundles with it an extension.dib, following the guidance in this document: https://github.com/dotnet/interactive/tree/5df931c08ec22bb0d01c8082e2339b80a17f4a30/samples/extensions/RandomNumber

We reference the bundled extension here: https://github.com/hypar-io/Elements/blob/ea629a7ec2d873cbf680298a6af69a00fd59ccbf/Elements/src/Elements.csproj#L60

Until recently, I would install the library in a notebook using #r “nuget: Hypar.Elements, *-*“ and it would both install the package and import the extension. The usings from the .dib were automatically imported, I had access to the variables/methods defined, and custom Formatters would be registered for me to use right away.

Recently, this stopped working in interactive notebooks in VS Code. I still receive the message Loading extension script from /Users/andrewheumann/.nuget/packages/hypar.elements/1.4.0-alpha.2/interactive-extensions/dotnet/extension.dib, and I can verify that that file exists. However, none of the usings are imported, and none of the variables / methods / Formatters are available. This video shows how this used to work.

Let me know if I’ve missed something about how this is supposed to work, or if this is the wrong place to report this issue.

Please complete the following:

Which version of .NET Interactive are you using? (In a notebook, run the #!about magic command. ): Version: 1.0.355307+4cc71ae4e275fd80852b9c2faa317bc3a0033d2c Library version: 1.0.0-beta.22553.7+4cc71ae4e275fd80852b9c2faa317bc3a0033d2c Build date: 2022-11-04T02:20:42.0000000Z

OS
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