Cannot watch Twitter videos on Twitter or DU on a Chromebook

[DonaldsRump]

No issues with YouTube videos: they play fine.

This problem first manifested itself last week on two Chromebooks I use regularly. When I click on Twitter videos on both DU and on Twitter, I get a revolving white circle and then a message that "The media cannot be loaded." I've googled the heck out of this, and nothing seems to work. On my PCs, Twitter videos work fine on DU and Twitter, but not on the Chromebooks.

I've done everything I can think of like doing a soft reset, clearing the cache and cookies, turning off extensions. Nothing seems to work.

Help me please! Thank you!