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If participant publishes more than one stream from camera, only the first published stream will be available at WCS side.
Known problems
1. A stream captured from a screen window simulcast publishing will crash Chrome browser tab on minimizing this window
Symptoms: when stream is capturing from active screen window, Chrome tab crashes if this window is minimized by user
Solution: there is the Chromium bug, a stream capturing from a screen window should be publihed in only one quality (no simulcast) until this bug is fixed