Problem uploading new Room image

Hello,

i'm trying to change my room images uploading my own instead of usig the default images.

The problem is that every time i try to use a photo i have taken, the iOS app resize it and distorce it.

I tried to check a default image, and i saw it is 1920x1280 pixels, but even if i try to resize my image to 1920x1280, the situation is the same. The image is resized and over all distorced.

Anyone can help telling me which is the exact image size to use to upload a new image and see it as it is taken?

Thank u