Updating Published Collections takes forever
New 16" MacPro M1 Pro, OS 12.2.1, files on a Drobo 5C direct USB connection. Plenty of unused drive space on it and the computer. I have quite a few galleries on my site (https://dianemiller.smugmug.com/) and I have added a single image to my 2022 favorites, which only had 8 images in it. LrC shows Updating Published Collections and shows the 1 image in New Photos to Publish in Grid view. The bar goes about halfway across and appears to hang. This action has always taken a few minutes but now it it taking MUCH longer, but it finally finished. Another gallery shows about a dozen Modified Photos to Publish and one new one, but I had added that one months ago and published it. I did Publish on this gallery and it took about 30 minutes. The Drobo is rewriting frantically. All software is up to date. Is this something with OS Monterey (OS 12)? Or is it just picking up on pictures that were somehow not correctly published on the older computer (a Mac Pro with OS 10 and several previous versions over the years). Thanks for any advice!