Gene51 wrote:
I am using LR 8 Classic CC, and I just did a test sweep pano (something I never have done in the past) with my RX10M4, and viewed the image in Lightroom prior to and after importing - with no issues. There is something in the information that you have not yet provided that may hold a clue as to why you are having an issue. LR version, Pano file size, camera settings, etc. would be helpful to know. In any case, I never use in-camera pano - I much prefer to record raw files, then merge in post.
The technology of stitching in Lightroom, Photoshop and ACR (and probably other software) has evolved to a state that creates landscape shooting opportunities like we've never had.