Upside down or rotated images
Within images, especially those taken with cell phones, there is metadata called EXIF data. That basically tells devices that support it that while the image was taken with x rotation it should appear a different way.
Qwilr doesn't support EXIF data, so if you've added a photo and it's rotated that's likely why. You'll want to open that image in a photo editing software and rotate it correctly and save. Some photo editing software like Photoshop will read the EXIF data and rotate the image for you. In that case just save right away to save the rotation. From there upload to Qwilr and it will appear correct.