Lightroom Classic CC, latest version, freezes when I use "Synchronize folder" and have the "show import dialog before continuing" option selected. (Not only does it freeze but it ends up using a ton of CPU, more than 200% per Activity Monitor, and the fans start going like crazy.)
Lightroom synchronizes the folder just fine when I DON'T have that option selected, but I need to be able to use that option. The problem occurs whether or not the "scan for metadata updates" option is selected.
I'm on a Macbook Pro, latest version of Mojave. In Lightroom, the issue occurs for me in the latest version of Lightroom Classic CC. Per a different forum post in which someone solved their problem by downgrading to v 7.5, I tried that but the problem remains.
I did NOT have the problem in Lightroom 6 (from 2015), which was what I was using until just recently when I got a new computer and needed to upgrade my OS. I'm still trying to get back up and running with Lightroom on the rebuilt system, and this problem is keeping me from moving forward.
I've tried resetting preferences to no avail.
This is a folder with a lot of images (more than 15,000). Do I just need to give it all day to run for the first time or something? There are only 26 images in the folder that have changed.