I have a problem with Rotate Canvas in Adobe Photoshop CS. I deleted the prefs but problem persists. I can rotate an image and it looks okay. Then I close it and reopen it and it is usually 90 deg. off. What's going on?
Are you rotating the images in the File Browser? Rotating images in the File Browser is a two step process. If you don't complete both steps, the image will revert back to its original un-rotated state.
Step 1. Rotate the image in File Browser...
Choose Edit > Rotate... or use the Rotate buttons.
Step 2. Apply the rotation...
Choose Edit > Apply Rotation.
Now your rotated images should stay that way.