Hi,
you could try my solution for the API that I recommended in another thread that sounds as if there is a bigger problem:
But seeing events is one thing, doing something about it might still be a task for Piwik PRO as those events seem to be sent towards the endpoint directly without a website in between. Maybe @sararekowska can reach out internally to start a broader inspection of what is going on there.
When you can share any details about the events you might find using the API, it would help to pinpoint what might be the cause and / or intent behind those requests.
best,
Markus