I am importing about 5,100 images from an external hard drive and it's getting hung up at about 4,700 images each time and not finishing. This has happened with past imports as well, different folders on the same hard drive. The program does not freeze. I can still just end the operation, but obviously those last photos never come into Lightroom. I am using CC 2015.3 on a PC. Let me know if anyone has suggestions. Thanks.
Would suggest you to go to Lightroom Preferences > File handling > increase the camera raw cache size to higher end (may be 50-60GB) and then, try to import.
Thanks, I'll try that.