Master client never calls any raised event

Briskled

Hello guys,

i created a helper class which contains a dictionary full of codes and multicast-delegates for my events:

private static Dictionary<byte, EventDelegate> events = new Dictionary<byte, EventDelegate>();

If any event gets raised there is this one single method for executing the correct delegate:

private static void OnEvent(byte eventcode, object content, int senderid)
    {
        if(!events.ContainsKey(eventcode))
        {
            Debug.LogError("Tried to call unknown event with code: " + eventcode);
            return;
        }
        var dele = events[eventcode];
        if(dele != null)
        {
            PhotonPlayer sender = PhotonPlayer.Find(senderid);
            dele(content, sender);
        }
    }

The OnEvent-Method is registered using

PhotonNetwork.OnEventCall += OnEvent;

.
This gets called in OnJoinedRoom-Method. The connectionStateDetailed is always Joined at this moment.

By default i raise my events using

public static void RaiseEvent(byte eventCode, object arguments = null, bool reliable = true, bool all = true)
    {
        Debug.Log("Raising Event "+eventCode);
        PhotonNetwork.OnEventCall(eventCode, arguments, PhotonNetwork.player.ID);

        var options = RaiseEventOptions.Default;
        if (all)
        {
            options.CachingOption = EventCaching.AddToRoomCacheGlobal;
            options.Receivers = ReceiverGroup.All;
        } 
        {
            PhotonNetwork.RaiseEvent(eventCode, arguments, reliable, options);
        }
    }

In fact all this works absolutely fine as expected but only the master client recieves no single event. Even the simple expression

PhotonNetwork.OnEventCall(199, null, PhotonNetwork.player.ID)

does not have any effect. I tested this in Unity-Editor and as Standalone. Same results

I hope you guys have some ideas why the eventsystem works for everybody but not for the masterclient.
Thanks

Briskled

If you wondered how i register my Methods:

    public static void RegisterEvent(byte eventcode, EventDelegate dele) {
        if(!events.ContainsKey(eventcode))
        {
            events[eventcode] = dele;
        } else
        {
            events[eventcode] += dele;
        }
    }