If the student's network speed is slow, there may be a phenomenon where video tiles or shared screens momentarily (about 3-4 seconds) turn black. Please wait a moment for it to return to normal!
If it remains the same even after some time, please follow the steps below.
First, please use the Chrome browser.
1.
Open Chrome and click the vertical three buttons, more on the right side.
2.
Click Settings.
1.
In the search field, search for "hardware".
2.
Disable [Use hardware acceleration when available] and click Restart.
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