Could not open the video sometimes.

[DavidZhang73]

example1: It shows NaN% on the progress indicator, and one possible issue is that the video is too large.
example2: It shows NaN% on the progress indicator, and one possible issue is that the video is too large.
example3: It shows NaN% on the progress indicator, and one possible issue is that the video is too large.
example4: TypeError: Cannot read properties of undefined (reading 'chunk_offsets').

Simple workaround: refresh the page, F5 or shift + F5 to force recache.