HDR Merge - Not stacking

[#1]

Hi, 

In Lightroom (not lightroom clssic), when I merge a few photos in a HDR Merge, I cannot find the HDR version of the photo in the film strip, and the photos are not stacking once the merge is complete? Am I missing something? Does anyone know where it goes? 

[#2]

Hi, 

In Lightroom (not lightroom clssic), when I merge a few photos in a HDR Merge, I cannot find the HDR version of the photo in the film strip, and the photos are not stacking once the merge is complete? Am I missing something? Does anyone know where it goes?