The following error message appears after the computer has been rebooted.
This error message can occur if Snagit was downloaded and installed through Apple's App Store, and Snagit is set to start when the computer is started. Apple placed very strict "Sandboxing" rules on Apps in the App Store. So, in the case of Snagit, The Editor is the main process and SnagitHelper must launch along with the Editor. If the SnagitHelper attempts to launch without the Editor, then the operating system will block it, and present this error message. Our Developers are looking into ways to get around this, however it is not clear if this will be possible because of the "Sandboxing" restrictions.
With this in mind, the error should not cause any problem with Snagit, other than its annoyance. It should be possible to click past the error, open Snagit and continue using it without any issue.
To prevent this message from appearing, open Snagit and go to the menu bar item Snagit > Preferences, and uncheck the box for "Always keep Snagit running in the background" .