Shows the collection of available thumbnails in the highest possible resolution.
< Spätná väzba na YouTube: thumbnail previews
I think it should be "hqdefault" instead of "hrdefault". This is why one thumbnail is always blank.
Good catch! Thank you for the bug report. It is fixed in the latest version.
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I think it should be "hqdefault" instead of "hrdefault". This is why one thumbnail is always blank.