Sony has a list of cameras that support USB-PD and states that fast charging requires at least 18W of power (9V over 2A).
For now, the OM-D Webcam Beta only supports Windows computers and works with five of Olympus’ mirrorless cameras: the OM-D E-M1X, the OM-D E-M1, the OM-D E-M1 Mark II, the OM-D E-M1 Mark III, and the ...
Restart your computer. Plug your webcam into another available USB port. Check your webcam cable. The cable might be damaged. Test your webcam on another working computer. The above steps will let you ...