Webcam loading forever

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can NOT get RaspiCam (RED LED shows) to show - everything else works on a Raspberry Pi 3B+ ; see screenshots

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Screen Shot 2019-03-16 at 12.35.43.png1172×769 58.7 KB
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Screen Shot 2019-03-16 at 12.36.04.png889×748 84.1 KB
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Screen Shot 2019-03-16 at 12.38.41.png719×898 70.3 KB