Hi @Darren,
Welcome to Microsoft Q&A!
Does it happen in specific project or all projects?
You can try to rename or delete the Indexing.servicehub.service.json file from the C:\Program Files\Microsoft Visual Studio\2022\[Community,Pro,Enterprise,Preview]\Common7\IDE\CommonExtensions\Microsoft\Editor\ServiceHub folder.
Then, delete the .vs folder and re-launch your VS2022.
Besides, I found the similar issue in Developer Community and it has been fixed in latest version of VS2022 ARM.
Please update it and check it again.
Sincerely,
Anna
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