DDJ-RX With Shure PGA48 Microphone

I am mixing internally with Rekordbox to OBS for Facebook Live. My Shure mic is connected with an XLR on Channel 3 in the back of the mixer. The music audio is perfectly fine in the stream but my voice on the microphone doesn't go through at all. I am getting signal on Channel 3 as well as on the Master meter. I can even hear it in my headphones either using Mic Talk Over or without. However, the Master on Rekordbox on my computer does not recognize any signal from the mic. Only the music. Note: I have an RCA to single female 3.5mm from the Master Output to a TRS male to TRRS male cable into the Mic input of my laptop. Please help!