"Specific App Did Launch" triggers actions twice

I testes using different applications, but the "Specific App Did Launch" trigger in the "Named & Other Triggers" section always triggers the action twice. I tested by triggering an a-z letter to a text application like TextEdit and opening any app always triggers the letter twice. I use that trigger to open and quit the MenuMeters application alongside my music DAW, but launching my DAW triggers MenuMeters twice, therefore opening the Preferences window (the app is programmed so that launching the app if it is already running will open its Preferences window).

BTT 3.626
MacOS 11.6.1