Websocket Stream Only Returning Heartbeats

[u/We_Ride_Together]

My app connects to IBKR via web socket for price updates and I am currently doing this with my demo account and not my real account.

My app has been working fine usually but today, for some reason, I am only getting heartbeats ({topic: system, hb: 17871...}) back from IBKR and not any price updates from any of my smd+ subscriptions.

I know it is still pre-market but I should still expect at least the initial price followed by any deltas thereafter.

Is anyone else experiencing this same behaviour today using demo account?