My flat video is exporting in 360 degrees

Hello,

So I made a video using premiere pro, and my main issue is that when I export it, it's exporting at a 360 degree video. There is no 360 degree footage (I don't even know how to work with 360 degree footage) as everything is shot from an everyday smartphone camera. I'm not sure what the issue is, I could really use the help.

Also, as a side note, it plays as a flat video when I open it with Windows Media Player, but when I use "Movies & TV" (The built in app for windows 10), it plays as a 360 degree video. I also uploaded the video to Youtube and it uploaded as a 360 degree video.

Thank you,

Muhammad Taha Ahsan