I tried to combine photographs in Lightroom Classic with Lightroom Desktop. The reason is that the desktop app syncs across all my devices, including my MacBook, iPad, iPhone and Mac mini. However, the sync was probably too big, and I gave up waiting for it after a month, when Lightroom Desktop on my Mac mini wouldn’t allow me to edit anything at all. I have removed all the sync error files (over 250,000) and am now deleting them. I have the originals on my hard drive. I started this yesterday afternoon, and it’s been several hours already! #lightroom