Issues with source bus and sound class routing

Hi everyone, I’m having an issue when routing sounds through a source bus. It seems like any sound routed through a source bus is bypassing the sound class even though the sound cue and source bus are both set to the correct sound class. I’m not quite sure how the signal flow works if both cue and bus can be routed to a class. the cue is also set to “bus only”. Any insight on this situation would be greatly appreciated. Thanks!