I am currently building a sandboxed app that also contains:Finder Sync Extension (sandboxed)XPC Service (sandboxed)The XPC Service exists to facilitate communication between the host app and the Finder Sync extension.So far, I have succesfully established an NSXPCConnection from the host app to the XPC service and was able to invoke a method on the XPC service from the host app. However, when I try to create a similar connection upon instantiation of the principal class of the Finder Sync extension, I immediately receive an error saying that the connection to the service was invalidated. I have confirmed that the XPC service is running, but somehow the connection is still invalidated immediately. I am also using the exact same service name when establishing the connection from the host app and when doing the same thing from the Finder Sync Extension.What could be the reason that the NSXPCConnection is invalidated immediately?Is there some kind of sandbox restriction at play here?Is communicating throught an XPC Service the recommended IPC architecture for a sandboxed app to communicate with an embedded Finder Sync Extension?