The hit based variant of the event tracked against the page views metric in Analytics exactly when deploying with DTM, but since migrating to Launch the event metric exceeds the page views metric by about 50%. After firing the event I'm using the 'Clear Variables' action to reset the event string and when debugging I can't see multiple instances of the same event.
Does Launch process or send events differently? Is there something I need to tweak in the configuration?
What I would advise to start with is to optimize the code the way that event1 and event2 are appended through the s.apl() plugin to prevent events duplication in case they are set somewhere else (in other rules, for example).
Ideally, share the website URL and scenario where that is happening. I am sure we will find an issue in the code. Alternatively, share the library URL and I will help you debug the Launch implementation via Launch Inspector.