iCloud Safari history not syncing across devices

[exi]

Can't figure this one out.

Three devices: laptop, iMac, iPhone. Most recent versions of Ventura and iOS. Same Network. Same Apple ID.

Both before and after a clean install of Ventura on the laptop and iMac, I continue to have this issue where the iMac does not seem to synchronize Safari history. That history is shared as expected across the iPhone and laptop. Bookmarks seem to be shared as expected across all three devices.

Issue persists, as above, before/after completely clean installs, and on Ventura now, reboots, manually disabling/re-enabling Safari synchronization across several minutes, and when that failed, logging out/logging into the same Apple ID on the iMac across several minutes. Persists after NVRAM reset on the iMac, although unclear to me why that would have helped anyway.

Am I missing something?

 

[DHPersonal]

I had a similar issue with my Safari Reading List, and I resolved it by moving the clock on my devices forward about a month to the point that the content was listed as "expired" and was wiped from the server. I then set the clocks back to their original (current) time and things started syncing correctly again.