As a publisher, one of the key features we rely on is the Combine image Files generated from large scans. Unfortunately since more than a year now Adobe rotates some of the image files incorrectly during the Combine process, some by 180 and others by 90 degrees. If we apply the same files again separately we can get completely different results, so very random and unreliable. We DO NOT WANT Adobe to do any "smart" rotation of the image files, or at least we would like to control it.
See more details here: https://community.adobe.com/t5/acrobat-discussions/combine-image-file-rotates-them-oncorrectly/td-p/12817032

Steps:
1. Open Acrobat DC
2. File > Create > Combine Files
3. Select few hundreds of image files (JPG) scanned
- At this point, all the pages look correct
4. Click on Combine
- Majority of the resulting file pages have rotated