HealthKit event triggers each subscription

I'm trying to observe .irregularHeartRhythmEvent using HKObserverQuery.

Code, I'm using to subscribe to this event:

Code Block 
private func subscribeForAbnormals() {
		let abnormals = HKCategoryType.categoryType(forIdentifier: .irregularHeartRhythmEvent)!
		healthStore.enableBackgroundDelivery(
			for: abnormals,
			frequency: HKUpdateFrequency.immediate
		) { isSuccess, error in
			let subscriptionStatus = isSuccess ? "OK ✅" : "FAILED ❌"
			print("Irregular hearbeat subscription status: \(subscriptionStatus)")
			if let error = error {
				print(error.localizedDescription)
			}
		}
		let query = HKObserverQuery(
			sampleType: abnormals,
			predicate: nil
		) { [weak self] _, completionHandler, _ in
			print("Irregular hearbeat detected")
			completionHandler()
		}
		healthStore.execute(query)
	}

Each time I call this function, I see output in my console:

Irregular hearbeat subscription status: OK ✅
Irregular hearbeat detected

According to HealthApp, I have no cases of Irregular Hearth Rhythm.
Also, I havn't any options how to detect if triggered event is fake or not.

Absolutely same situation with .lowHeartRateEvent and .highHeartRateEvent

My app has all allowed accesses to HealthKit.

How can I actually subscribe for such kind of events to track this and notify user?