Is this a bug, or resolution issue? Very important. Uploading bug!

This is like a bug!

I noticed something, I tried to use many phone device still having the same result. Yet to use a laptop, out of my reach .

This is about uploading image.
When you want to upload image from your device, normally its in this form...

Now I noticed this.

Once you click to upload a picture ,it will take you to your device, fine! But after uploading a picture, it will continue to showing UPLOADING YOUR IMAGE.. Along that circular uploading movement.

From the image below, I circled the bug in red.

This will make those using mobile device to be in a state of delima . it will make them not knowing how to upload the 2nd picture. But clicking on that uploading works but should be corrected.

Once an image uploaded, then a statement to chose another should be what suppose to appear next.

Please utopian work on that to favour all devices. Thanks.