I installed the latest version of Photoshop CC yesterday 11.05.2019
along with the latest version of Bridge. I have tried to do an HDR in camera RAW from 5 files and "auto tone" will not work. I have tried Canon raw files and Sony A6500 raw files with the same result. I am using Windows 10.
I have tried this on 2 different Windows 10 PC's and also on a Windows 7 PC. with exactly the same result.
The latest version of Camera raw 11.2.1 will not create an HDR image.
Adobe really need to fix this urgently.