When I connect my Code 50 to my PC via USB, it only plays the left audio of music but not the right audio. This problem does not persist when connected via Bluetooth to my phone.

I just got Marshall Code 25 and I m using it with Reaper. For 2 days it was working just perfect. But, in All of sudden everything collapsed, a lot of delay and reverb... I don`t know what happened. I`ve checked audio settings.... Nothing !!! Please if you have any clue let me know. I appreciate it .

Ps: PC Windows 10 Pro - RAM 8G - Memory 500G - 64bit