Some time ago I asked for help in getting photos from my phone into LR. I could see the photos on my screen and I could check the ones I wanted to import, but the importing process went on indefinitely without anything being uploaded. There were several suggestions but nothing worked until I deleted many photos from my iPhone first. Now the same problem is occurring and I've deleted half the photos on my phone but they are still not uploading. Anybody else having this problem?
You may try few things to fix this issue.
1. Reset the Lightroom preferences, refer: Preference file and other file locations | Lightroom CC and 6
2. Try new catalog
Also, refer the below related discussion.
Let us know if that helps.
Resetting the preferences did turn out to be correct. I couldn't figure it out by myself but called Adobe customer care at 1 (800) 833-6687 and a man in India did the resetting for me. He said it acted just like resetting a computer. Now the files upload well.