Safari 13.0 (macOS) breaks iCloud integration
One of the things I really like about Safari is that when you click on the Tab Overview icon (upper-right corner of the Safari window), it now only shows you thumbnails of your open tabs, but it also shows you open tabs on all your devices.
Safari 13.0 seems to have broken that. My Macs (MBP and and old-but-still-supported mini) both show nothing below the tabs (not even what is open on one another), whereas my iPhone and iPad each show one-another's open tabs, but don't show the open tabs on either of my Macs. Prior to my updating Safari on the two Macs on Saturday, this was not the case (they all saw showed others' open tabs). My wife sees the same thing on her iMac (so it is not unique to my iCloud account).
I toggled off and on the Safari checkbox in the iCloud System Setting -- made no difference.
Is anyone else seeing this, and does anyone have any ideas how to fix it (or do we need Apple to do it)?
MacBook Pro with Touch Bar