[SOLVED] Action event not called! Why?

Unity Engine
1

I can figure out why my Event is not called. The declaration is like this

public event Action<SocketInput, IOutput> OnConnectionEvent;

its called like this OnConnectionEvent?.Invoke(input, output);

I am subscribing like this

OnConnectionEvent += HandleConnection;

I put a log and I see the code gets to OnConnectionEvent?.Invoke(input, output);

but my listener HandleConnection is never called. Why?

2

Neve mind, my bad;