Bug reports need to follow the template. For now, I’m just moving it to Help.
Can you run the Obsidian command “Show debug info” and paste the results here?
You are showing the “Quick switcher” core plugin, I think. It should work, but it might depend on your version, your installer version, your plugins, or your theme. If your installer is old, download and reinstall Obsidian. Try in the Sandbox help vault, to make sure it isn’t a community plugin or theme causing trouble.