Please make sure you're using one of our accepted formats: JPG, JPEG, GIF, and PNG. Any other formats won't work with the PNP Application.
The size of your picture is also very important. Be sure your picture has a minimum resolution of 640x480 px and you haven't exceeded the maximum size of 8 MB. If your picture is too small or too big it will be refused due to being too low quality to appear properly in your video.
On iOS, you can long press a file in the Files app to see its information: https://support.apple.com/en-ca/guide/ipad/ipad49b77901/ios
On Android, you can find this information in the Files app: https://support.google.com/android/answer/9110661?hl=en
If you can't see the bottom of the pop-up box on the website, it is likely due to your screen resolution. Place your cursor on the pop-up box and scroll down using your mouse wheel. If this doesn't work, or if you don't have a mouse connected to your computer, zoom into your browser by pressing the keys Ctrl and - simulateously. It should zoom out of your screen and allow you to see the navigation buttons. To zoom in again to 100%, repeat this action with the keys Ctrl and +.
If you continue to have trouble, the Invengineer elves suggest you download the latest version of your web browser. If this doesn't help, contact the elves for support HERE.