You hooked up a DSLR, ATEM switcher, or capture card. It looks fine in the test window, but when you enter the room, the screen goes black or MarketScale reverts to your basic webcam. High-end gear requires a precise setup. If the browser hits a snag (bandwidth limits, a "busy" signal, or a format mismatch) it cuts the feed. Here is the checklist to get your signal back online.
Force the Browser Handshake (Most Common)
If the browser panicked on the first try, a simple refresh won't fix it. You need to force a re-check.
Click the Lock/Settings icon in your URL bar.
Toggle Camera permissions to Block, then immediately back to Allow.
This forces the browser to drop the cheap webcam and re-negotiate with your capture card. You may need to refresh your page for this setting to take effect.
Kill the Background Apps
Cameras can usually only serve one application at a time. If Zoom, Teams, or FaceTime is running in the background, it might be hogging the video feed.
Close every other video app completely.
Refresh MarketScale.
Check Your Output Settings
Browsers like standard formats. If you feed them a weird signal, they will reject it to save bandwidth.
Resolution: Set your switcher/camera to 1080p.
Frame Rate: Stick to 30fps.
Pro tip: MarketScale standardizes all output to 1080p at 30fps (approx. 8 Mbps). Don't burn bandwidth sending us a 4K feed; we automatically downscale it anyway. Match our settings for the smoothest connection.
Swap the Cable
It sounds too simple, but cheap HDMI or USB cables are the #1 cause of signal drops.
If you are pushing 1080p video, make sure you are using a high-speed cable. If the data transfer is too slow, the browser assumes the device is broken.