In CA API Portal the videos in the main page are not playing

Document ID : KB000104907
Last Modified Date : 05/07/2018
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After installing CA API Portal EE, all videos in the main intro page displays below errors in black screen.

Error when clicking a video in API Portal
This is a known issue with Portal 4.2.7.x as the links are broken.
This is a known issue with 4.2.7.x which is placed to be fixed in 4.2.8