Resolved images order when uploading

Hi,
When uploading property pictures I see that there is no logic order when displaying them, apparently they get a random error. When uploading a batch it is great to have the current drag&drop, but without the logic or ordering it gets a mess.

Could you please tell me how should I proceed to upload a batch of images. (i.e: 1img.jpg, 2img.jpg,3img.jpg) to be seen on the same order on the frontend?

Thanks