After I export my timeline (vertical video, shoot with Samsung Note 9) video gets distorted
Hi,
I am having an issue with my video becoming zoomed in and strectched vertically after rendering it in my timeline.

Everything looks normal proir to rendering it. I've tried copying and paste in to a new timeline, then rendering. Clearing Media Cache. Playing with the sequence settings. Nothing seems to help. The footage is shot vertcially with a Samsung Note 9(not sure if this matters).
Here current sequence settings.

If anyone has any suggestions, its greatly appreciated! I've searched on Google for hours and have gotten nowhere.
Thanks in advance!