Hi @Thomas Ardal,
Welcome to Microsoft Q&A!
For Exception Visualizer extension, it is in Preview and owned by visualizer author. If you have any issues with the visualizer, you need to directly contact the visualizer author.
Besides, if you have issue with custom Debugger Visualizers failing to load, you can see the similar issue. It is a known issue and will be fixed in VS 2022 version 17.12 Preview 2. Thanks for your understanding.
Sincerely,
Anna
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