Hi, the PDF was describing a test I was doing to investigate the behavior of Auto WB as well as Auto Tone. All I have been discussing here is the Auto Tone issue. Sorry about the confusion and thanks again for looking into this with me.
Yes, I can confirm that I used the same presets as in your last post screenshots.
I decided this afternoon to repeat the test as you had done, using just the 2 files we have been discussing. I created a NEW LR Cat and repeated the test, exactly as before and I got the same results as you! The adjustments are identical! So now I have 3 catalogs. My original one, that has been in use for some years, the one I "Exported as Catalog" and shared, and now this new one. I have double checked the History on each image file to confirm the step performed were identical. So now I have 2 catalogs that show the same steps on the same files, one has the inconsistency we have been discussing here and the other doesn't. So I'm thinking it is something to do with preferences as suggested, or at least my Catalog file. Before deleting my preferences I've Removed the images from my original catalog and repeated the test - this time I didn't see the issue! So, the issue has mysteriously "gone away". This is probably the least satisfying result. I think it is a software bug, but I can't reproduce it now.
Thanks for working through this with me. I wish we had a definative result though.
Brian
