Can't recieve OSC messages


I’m building a simple iOS app to control one audio parameter in a plugin I’m developing.
Connection seems to be fine, and I’m definitely sending out messages, but I can’t recieve any callbacks (tried both ‘oscMessageReceived’ and ‘oscBundleReceived’).

I’ve inherited from ‘OSCReceiver::Listener<>’ and ran both programs on the same computer.

Any ideas?