Exception: In-memory proxy does not support to invoke multiple receivers.

[devmasonz]

with code below:

var room = await Group.AddAsync(roomId);
await room.Except([ConnectionId]).OnNotifyTransaction(data);

I got following exceptions:
System.NotSupportedException: In-memory proxy does not support to invoke multiple receivers.
at Cysharp.Runtime.Multicast.InMemory.InMemoryProxyBase2.ThrowIfNotSingle() at Cysharp.Runtime.Multicast.InMemory.InMemoryProxyBase2.InvokeWithResult[T1,TResult](T1 arg1, Func`3 invoker)
at System_Guid_Editor_Shared_ISyncHubReceiver_Proxy.OnNotifyTransaction(Byte[])

Here is the value of room.Except