Workaround: This is a known design flaw of the Privacy feature of macOS. The protection feature can be confused when working with multiple copies of the same application. Use the following steps to ensure that macOS grants permission to the intended copy of the software:
Note that you can always keep backup copies of TinkerTool System on your Time Machine disks. This may not work when using third-party backup applications, however.
Privileged operations fail after a downgrade of the application: The security features of TinkerTool System won’t work as expected if you use a copy of the application and later use a copy with a lower version number. In this case, operations that require to be authorized by an administrator may no longer work. You will receive an error message instead, indicating that a “trust failure” has occurred.
Workaround: We strongly advise against any kind of downgrade of the software. However, if using an older version cannot be avoided for some reason, you’ll have to make sure that the version of the privileged tool currently running in macOS is matching the version that came with the version of TinkerTool System you like to use. Perform the following steps: