Black screen, small player, no thumbnail w/ embed

Here’s a screenshot of what I’m seeing – https://d.pr/i/13sWN

My credentials have been confirmed, and I can see the thumbnails in the Brightcove plugin area, but all I get is a black screen and a small player when I try to embed within a page or post.

https://www.ads-software.com/plugins/brightcove-video-connect/