Why to display 100% will change the orientation from portrait to landscape?

[weic15496030]

On portrait picture, if I want to enlarge to 100% to view, why it always changes to landscape orientation?

[johnrellis]

Sounds like a bug. As a first step, upload a photo with the problem to Dropbox, Google Drive, or similar and post the sharing link here. We can see if the problem occurs on other LR installations or just yours and possibly identify why this is happening.

[weic15496030]

Thank you. I have found out it is not my problem, but a shortcoming of Lightroom. Thanks again.

[Conrad C]

What is the method you are using to set 100% magnification? Are you choosing a menu command, clicking a tool, pressing a keyboard shortcut, or something else?

[weic15496030]

Thank you. I have found out it is not my problem, but a shortcoming of Lightroom. Thanks again.

[Bob Somrak]

As far as I know, there is no shortcoming in Lightroom that converts from portrait to landscape on zoom