Sublime Merge fails to open on MacOS.
OS: MacOS Catalina 10.15.7
Seems to be the application is not trusted.
xattr /Applications/Sublime\ Merge.app com.apple.quarantine
xattr -cr /Applications/Sublime\ Merge.app
The application opened successfully.
Did this happen after a fresh install, an update, restore from backup or similar action? Which version of Sublime Merge are you using?