Execution calculation never being reached when a client is activating an ability

I’m trying to activate an ability on the client, but no matter what I tried (different ability net execution and security policies, debugging for validity), it just won’t reach my execution calculation class, and I made sure everything is valid. When using “client or server” the ability activates but the function is not reached, and when i use “server initiated” the ability doesn’t activate at all. Everything works correctly on the server: from ability activation → GE applying → execution calculation → reducing health via damage meta attribute. I understanding networking to some extent in the engine, but I’m completely stumped as to how I can make a client activated gameplay ability reach the execution calculation.