It seems the Image Handler (GetImage.ashx) does not honor the rotation bit which can be in jpg-files (or other image files).
Below is an example of how an image looks in the backend and how it is displayed in the frontend with the Image Handler.
Here is the original file + a text file containing the metadata in the file: https://d.pr/f/uvxG34
Here is a snippet of the metadata. And the part which is not honored is the Orientation data.
Make : Apple
Camera Model Name : iPhone 12 Pro
Orientation : Rotate 90 CW
X Resolution : 72
Y Resolution : 72
Resolution Unit : inches
Software : 18.2
Modify Date : 2024:11:25 12:01:22
Host Computer : iPhone 12 Pro
Y Cb Cr Positioning : Centered
Exposure Time : 1/121
F Number : 1.6
Exposure Program : Program AE
ISO : 125
Exif Version : 0232
Date/Time Original : 2024:11:25 12:01:22
Create Date : 2024:11:25 12:01:22
Offset Time : +01:00
Offset Time Original : +01:00
Offset Time Digitized : +01:00
Components Configuration : Y, Cb, Cr, -
Shutter Speed Value : 1/121
Aperture Value : 1.6
Brightness Value : 3.667022955
Exposure Compensation : 0
Metering Mode : Multi-segment
Flash : Off, Did not fire
Focal Length : 4.2 mm
Has anybody else run into this issue? It happens in both DW 9 and DW 10.