Editor opening up two scenes

When I click edit on a scene, it opens up the scene and a duplicate, so I get two windows of the same scene opening. Wasn’t doing this previously. Is there something I can clear from a folder to stop this from happening? Thanks.

We can’t reproduce this problem on our computers. Does this scene have any custom html? If you open the scene preview by clicking in the scene thumbnail, does it also open two windows or just one?

Weirdly enough it just stopped doing it. There wasn’t any custom html, don’t know why it started or stopped. Thank you for taking the time to respond.