There are multiple reasons why different locations might appear in your video activity reporting.
1) The Internet servers of viewers are located in different locations. This can apply to you, your team, or your recipient/s. This is mostly the case for mobile cellular connections, but can apply to desktop connections.
2) You, your team members, or recipient/s are sharing your videos with people outside of their location.
3) Recipients of the video are using third-party security software that scans emails, links, or web pages with servers located in different locations.