diff --git a/Sources/RTMP/RTMPConnection.swift b/Sources/RTMP/RTMPConnection.swift
index 41df21bcc..1f90e5262 100644
--- a/Sources/RTMP/RTMPConnection.swift
+++ b/Sources/RTMP/RTMPConnection.swift
@@ -3,8 +3,6 @@ import Foundation
 
 /// The RTMPResponder class provides to use handle RTMPConnection's callback.
 open class RTMPResponder {
-    static let empty = RTMPResponder(result: { _ in })
-
     /// A Handler represents RTMPResponder's callback function.
     public typealias Handler = (_ data: [Any?]) -> Void
 
@@ -336,8 +334,8 @@ public class RTMPConnection: EventDispatcher {
     func createStream(_ stream: RTMPStream) {
         if let fcPublishName = stream.fcPublishName {
             // FMLE-compatible sequences
-            call("releaseStream", responder: RTMPResponder.empty, arguments: fcPublishName)
-            call("FCPublish", responder: RTMPResponder.empty, arguments: fcPublishName)
+            call("releaseStream", responder: nil, arguments: fcPublishName)
+            call("FCPublish", responder: nil, arguments: fcPublishName)
         }
         let responder = RTMPResponder(result: { data -> Void in
             guard let id = data[0] as? Double else {
diff --git a/Sources/RTMP/RTMPMessage.swift b/Sources/RTMP/RTMPMessage.swift
index 99876d06e..3d564ec52 100644
--- a/Sources/RTMP/RTMPMessage.swift
+++ b/Sources/RTMP/RTMPMessage.swift
@@ -336,6 +336,9 @@ final class RTMPCommandMessage: RTMPMessage {
             switch commandName {
             case "close":
                 connection.close(isDisconnected: true)
+            case "onFCPublish", "onFCUnpublish":
+                // The specification is undefined, ignores it because it cannot handle it properly.
+                logger.info(commandName, arguments)
             default:
                 connection.dispatch(.rtmpStatus, bubbles: false, data: arguments.first as Any?)
             }
diff --git a/Sources/RTMP/RTMPStream.swift b/Sources/RTMP/RTMPStream.swift
index 1808f6d27..b8ff8e678 100644
--- a/Sources/RTMP/RTMPStream.swift
+++ b/Sources/RTMP/RTMPStream.swift
@@ -426,16 +426,6 @@ open class RTMPStream: IOStream {
         return metadata
     }
 
-    override public func readyStateWillChange(to readyState: IOStream.ReadyState) {
-        switch self.readyState {
-        case .publishing:
-            FCUnpublish()
-        default:
-            break
-        }
-        super.readyStateWillChange(to: readyState)
-    }
-
     override public func readyStateDidChange(to readyState: IOStream.ReadyState) {
         guard let connection else {
             return
@@ -494,6 +484,9 @@ open class RTMPStream: IOStream {
             return
         }
         readyState = .open
+        if let fcPublishName {
+            connection.call("FCUnpublish", responder: nil, arguments: fcPublishName)
+        }
         connection.socket?.doOutput(chunk: RTMPChunk(
                                         type: .zero,
                                         streamId: RTMPChunk.StreamID.command.rawValue,
@@ -569,15 +562,6 @@ open class RTMPStream: IOStream {
     }
 }
 
-extension RTMPStream {
-    func FCUnpublish() {
-        guard let connection, let name = info.resourceName, connection.flashVer.contains("FMLE/") else {
-            return
-        }
-        connection.call("FCUnpublish", responder: nil, arguments: name)
-    }
-}
-
 extension RTMPStream: EventDispatcherConvertible {
     // MARK: IEventDispatcher
     public func addEventListener(_ type: Event.Name, selector: Selector, observer: AnyObject? = nil, useCapture: Bool = false) {