HDR Photomerge workflow is inane (re: stacks)
Perhaps this is not a bug, but intended, but I cannot fathom why it would be.
I want to make an HDR Panorama, but due to LR's many problems with doing that with a single step (i.e. selecting all the bracketed images, then 'Merge to HDR Pano', which often results in a stall or very long wait) I've been forced to first make the HDR images from the brackets, and then Merge to Panorama. Of course, it makes sense to stack the HDR image with its bracketed components when making the HDR, and this is where the problem comes in. If I select all the component HDR images in their stacks (collapsed), and then click Merge to Panorama, it tries to re-HDR the images, rather than just using the HDR images I've selected to build the pano. The workaround for me has been to (try to!) remember to expand the stacks first, which then allows the Merge to Panorama to complete normally; this is a pain, and is easy to forget to do.
Being the that the new DNG files are tagged as an HDR image right in the filename, why in the world does LR try to re-HDR the stacks (including the HDR image)? It really makes zero sense to me. This has been happening for years, and it just seems like it's an oversight.