P: Guided upright doesn't work with some Leica DNG files

Thanks - @8510810 here's a link to a video - https://www.dropbox.com/s/c1dt2wrswb361o8/guided-transform-not-working.mov?dl=0. As you can see, I move the handles at the end of the lines but no transform takes place. I have been using this tool successfully for at least a couple of years and it only stopped working a few days ago when I upgraded to MacOS Big Sur. Somebody else mentioned above that they had experienced the same behaviour on Leica DNG files, and this is indeed a Leica DNG file but I have been doing the same thing successfully previous to this OS update so it was not a problem on Leica M10-R DNG files prior to this. I haven't installed any new firmware recently so the DNG files themselves have not changed. Thanks! 

Peter, please upload a sample failing photo to Dropbox or similar and post the sharing link here.

Why conversations get merged:

https://feedback.photoshop.com/conversations/lightroom-classic/lightroom-auto-import-to-folders-organized-by-date/5f5f44f14b561a3d422ab0ba?commentId=5f5f48984b561a3d422bdf45 

@Rikk 

Someone else reported this issue with Leica DNG files.

https://feedback.photoshop.com/conversations/lightroom-classic/lightroom-classic-guided-upright-doesnt-work-with-dng-files/5fd57457f82792403a008482

Any chance you could record a video showing the failure and post a link to it here?

Thanks for the tip and for checking though unfortunately this does not work for me. I have reset the preferences successfully but guided transform still does not work.

I can't reproduce the problem on my Mac running Big Sur and Lightroom Classic 10.1. Guided transform works as expected. Maybe you should try resetting the preferences.

Since upgrading to MacOS Big Sur 11.1 (20C69), the Transform > Guided tool has stopped working for me. You can set the two vertical and two horizontal lines, but no changes are made to the photo - it stays just as it was. Any solutions to this?

Thanks for providing the file and thank you for bringing this to our attention. I was able to reproduce this with your image as well as DNG images from other Leica cameras. (M10 Monochrome, M10-P, M10-D, and S2)

I have logged a bug and will update this thread when we learn more.

Thank you for your patience.

@Rikk is there a way to enable any kind of logging in Lightroom? Also here is an example of the raw file I have issues with.

Please let me know if I can provide anything else to help with this issue.