So,
track 1 ---> Realtek Mic
track 2 ---> Voicemeeter (Desktop audio)
track 3 ---> Cable Input (Realtek mic + Desktop Audio)
These 3 tracks are present in your recording.
Maybe your player does not reproduce them. Try VLC.
Streaming:
Default track streamed is track 1.
Unless you change this to track 3, your stream will have only your mic sound.