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I don't know why, but deleting ".DS_Store" solved this problem.

I have trouble with searching apps. Environment: * macOS Catalina version 10.15.2 (MacBook) * Alfred --version 4.0.7 [1131] Problem: Spotlight can find the app in "/System/Volumes/Data/Applications" (e.g. Safari.app, Google Chrome.app, and iTerm.app), but Alfred cannot find these apps. Strangely, my MacBookPro does not have this problem. what I have read or tried: * https://www.alfredapp.com/help/troubleshooting/catalina/#apps * https://www.alfredapp.com/help/troubleshooting/indexing/ * clear the app cache * Rebuilt metadata by going to Alfred's Advanced preferences > Rebuild macOS Metadata (with deleting .Spotlight-V100); and wait for 2 hours * type "reload" after each action. * reinstall Alfred * reinstall other apps * reinstall macOS Catalina Please help me, thank you.