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Hello, We are trying to do some advanced stuff with CoreHaptics where we need to navigate in the haptic pattern (start, pause, resume, rewind or fast forward). But it seems like the seek(toOffset:) method of CHHapticAdvancedPatternPlayer doesn't work on iOS 14 and iOS 15. Here's a sample code : import CoreHaptics import Foundation import SwiftUI let events = [ CHHapticEvent( eventType: .hapticContinuous, parameters: [ CHHapticEventParameter(parameterID: .hapticSharpness, value: 1), CHHapticEventParameter(parameterID: .hapticIntensity, value: 0.8) ], relativeTime: 0, duration: 3 ) ] let parameters = [ CHHapticDynamicParameter(parameterID: .hapticIntensityControl, value: 1, relativeTime: 0), CHHapticDynamicParameter(parameterID: .hapticIntensityControl, value: 0.5, relativeTime: 0.5), CHHapticDynamicParameter(parameterID: .hapticIntensityControl, value: 1, relativeTime: 1), CHHapticDynamicParameter(parameterID: .hapticIntensityControl, value: 0.5, relativeTime: 1.5), CHHapticDynamicParameter(parameterID: .hapticIntensityControl, value: 1, relativeTime: 2), CHHapticDynamicParameter(parameterID: .hapticIntensityControl, value: 0.5, relativeTime: 2.5) ] let pattern = try! CHHapticPattern(events: events, parameters: parameters) struct ContentView: View { private var player: CHHapticAdvancedPatternPlayer? var body: some View { VStack(spacing: 20) { Button("Start") { try? player?.start(atTime: CHHapticTimeImmediate) } Button("Pause") { try? player?.pause(atTime: CHHapticTimeImmediate) } Button("Resume") { try? player?.resume(atTime: CHHapticTimeImmediate) } Button("Stop") { try? player?.stop(atTime: CHHapticTimeImmediate) } Button("Seek to offset 1 sec") { do { try player?.seek(toOffset: 1) print("No error") } catch { print(error) } } } } init() { guard CHHapticEngine.capabilitiesForHardware().supportsHaptics, let engine = try? CHHapticEngine() else { return } engine.resetHandler = { try? engine.start() } try? engine.start() self.player = try? engine.makeAdvancedPlayer(with: pattern) print(pattern.duration) } } Is there anything wrong with the code ? Can someone provide a working example ? Thanks !