Merge to HDR not Working in Lightroom Classic 10

[#1]

This feature was working fine until a couple of days ago, when it just stopped working. Tried with several sets of images. Tried reseting preferences. Didn't work. The dialog box opens and the progress bar works, but the merged image does not appear. I have been using this feature since it appeared and don't recall this happening before. 

[#2]

This feature was working fine until a couple of days ago, when it just stopped working. Tried with several sets of images. Tried reseting preferences. Didn't work. The dialog box opens and the progress bar works, but the merged image does not appear. I have been using this feature since it appeared and don't recall this happening before. 

[#3]

Update to above. The merged images are being created and appear in the same folder as the source images. The merged image just doesn't show up in LR Classic.

[#4]

No problem here. Check that you do not have an active filter that may filter out the HDR DNG file.

[#5]

That is not what is going on. The HDR file is clearly not showing up in LR, anywhere. Plus, the last time I tried an HDR merge, I actually got an error message telling me the file would not show up in LR, which I had not been getting before. Also, Lightroom will not let me import the missing HDR files into LR.

[#6]

If you get that error again, please post a screenshot of it.

[#7]

Check your Export settings and make sure the box for Include in this catalog is checked. Export one, ANY, image to make sure that box is checked and stays checked.

Now you are going to ask why would that matter. IMO when you call up these feature the images included are actually Exported.

[#8]

Where do I find these settings? The only export settings of which I am aware do not involve exporting to the catalog.

[#9]

That option is in the top panel of the Export dialog, but like I said: this has nothing to do with Merge to HDR.

[#10]

Oh, that. I have never had that checked. That doesn't make any sense. I don't want every image I export added to the catalog and it should have no bearing on the problem I am having. 

[#11]

While one would think that selecting the add to collection option in export would have nothing to do with merge photo, it does. This goes back several versions. In effect, when you merge, you are exporting. Used to have this problem, would sync after the merge, then someone in the older forum stated the above solution, did not argue, or debate, just tested, then accepted.

[#12]

I'm 99.99% sure that the images are not exported in a way that the export dialog is involved. I never add exported images to my catalog, and yet I can merge to HDR and/or panorama just fine.

[#13]

Try creating a fresh, empty catalog and merge from there.