The jpg files in the attached example are rendered as black boxes in Qt 5.5.0.
QImage may fail to read images in Qt 5.5
Jpeg image plugin can not read some jpeg files without exif infomation.
QPixmap::load() does not load some images in qt 5.5 but in qt 5.4.1 it works.
JPG image can't be read by Qt when it was saved by Qt itself
Regression: QImage fails to load jpg file with EXIF
QImage doesn't read JPEGs saved from Photoshop (regression from 5.4 to 5.5)
QImageReader fails on legal jpegs
Qt does not load JPEG files with invalid (reserved) Exif orientation