So I am just learning Lightroom. I'm trying to import photos to a catalog. Under source in the left panel, I've chosen where the photos are located. "Include Subfolders" is checked and there's a little spin-y circle at the bottom left of the panel, which makes me think it's thinking about it. Is it be because there are about 2,000 photos in the folder? I've been waiting as patiently as possible for it to display for 45 minutes and it's frustrating me. I'm including a screenshot.
Can anyone help?
Please disconnect the external hard drive and re-connect it, then select the folder under the source and check if it populates the images.
Also, browser to that folder via file explore or finder and check if you can see all the images.
You can also select the parent folder and check if Lightroom shows you any images.
Let us know the outcome.