After editing an old photo after exporting it to Photoshops. It return to Lighroom with a red mask around the subject. What I did is adjusted the highlight and shadows, then imported it to Photoshop. I duplicated the layer, did a select subject then did a select and mask on new layer. I then added a solid colour white layer underneath the masked layer. The I saved the finished edits in photoshop.
When it returned to Lightroom classic I got the red background surround the main subjects of the image. How do I remove the red background, which I assume is the mask overlay. Pressing O does not hide the mask. Not sure how to removed the red background which spoils the overal image.