At the below link it was discovered when batch applying the Auto Settings function to multiple image files the Basic panel control settings are sometimes different than when applying it to individual image files.
Lightroom 8.3.1 Process Version 5 Auto Settings has improved the image rendering considerably using its sensei Ai technology. For most image files the only manual adjustment required is a slight change to the Exposure setting. This is a huge timesaver when trying to get a large number of picture files edited for any purpose. Unfortunately, when using batch apply of Auto Settings Adobe Engineering forces the routine to use the lower-resolution camera raw cache image data. This is done because there is a large reduction in performance when using the full image data. There are often a number of image files that do not render well using the lower-resolution camera raw cache data, but are more than acceptable when Auto Settings is reapplied individually. YMMV dependent on the many variables of image file content, but the Auto Settings function in Lightroom 8.3.1 is pretty darn good when it uses the full image data.
Many people who process a large number of image files will start an Import process and do something else until it is completed. Users who have the time or run the import overnight will be better served if they can select a Preference option or other setting that allows using the full image data for calculating Auto Settings during an Import process or even for images already imported into Lightroom.
If there’s an issue with Imports needing the Library previews and camera raw cache created before Auto Settings can be run it could be queued to apply it after the Import operation has completed. A second Auto Settings option can be provided to rerun Library Preview building after the Auto Settings operation using the Import module’s setting for ‘Build Previews’ selection. This way the user can run the operation off-line of normal work or overnight and not have to invoke Preview Building manually after the Import operation.