P: Sync between Lightroom desktop and Lightroom cloud is stuck
I'm doing some Lightroom housekeeping ahead of a big photo-trip next week, and part of it was deleting a bunch of lousy photos I've taken over the past couple years. After deleting ~15,000 photos, my desktop Lightroom CC (not Lightroom Classic) app (version 4.4 for Windows) is stuck 'syncing' 899 photos, and nothing I do seems to get the process to actually complete.
When I first saw this, Lightroom desktop was stuck 'syncing' 292 photos, and clicking "View" in the syncing menu would get the incredibly-unhelpful "Oh no! A black hole." message. Following tips I've found in other threads here, I tried making a small change to the last batch of photos I imported (I just and flagged them all as "picked"), and the number in the Cloud Syncing menu jumped up to 899, but now when I click "View" in the sync menu, only 607 photos are visible.
Just going by the numbers referenced above, it can't be a coincidence that there were 292 photos stuck in sync-limbo when this first happened, I imported/tweaked 607 more, and now the Sync menu is stuck on 899 photos total (292 + 607 = 899). I also find it notable that the newest album I created (to contain the 607 photos noted above) doesn't appear in Lightroom Web - only in the desktop app. Something clogged the pipes, and I don't know how to un-clog them!
Help please? I'm really stressed about getting this solved before I leave on my trip in a few days!
