in my gallery i have 50 images take by andorid an iphone cameras

the gallery works great and create the thumbnails for the website, but the most thumbnails are coming with the wrong orientation

on the same image the thumbnail is always the same error, that means, i cleared the cache and rebuild the project, but an image with a wrong thumbnail orientation of 90 or 180 degrees, always had the same error

the large image of an "wrong" thumbnail, comes in the correct orientation

in the code i see, that the orientation is calculated from the exif x and y dimensions, but if i analyze my images, the dimensions looking fine