Issue Summary

On Confluence pages, we are not able to choose the thumbnail for the uploaded videos.

Steps to Reproduce

1. Edit/create a page;
2. Insert a video to the page;
3. Click on the video and check the options;
4. Publish page;

Expected Results

You're able to choose the thumbnail for the video on the options;

Actual Results

The thumbnail is randomly chosen and you're not able to select a new one.

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available