Hello Russel, thanks for the update today. I have again trouble synchronizing the two Macs. While streaming the logs in Console, I got errors like this one:
error: CoreData+CloudKit: -NSCloudKitMirroringDelegate recoverFromError:: <NSCloudKitMirroringDelegate: 0x600003118000> - Attempting recovery from error: <CKError 0x6000004ff7e0: "Partial Failure" (2/1011); "Failed to modify some records"; uuid = F52CA680-FE76-4CA7-846B-B9BB86D27264; container ID = "iCloud.com.sweetpproductions.SessionRestore"; partial errors: {
7E48F23A-3DA7-4FB5-BD2C-3DD5A0E64480:(com.apple.coredata.cloudkit.zone:defaultOwner) = <CKError 0x6000004ff4b0: "Invalid Arguments" (12/2006); server message = "Cannot create or modify field 'CD_screenshot' in record 'CD_Session' in production schema"; uuid = F52CA680-FE76-4CA7-846B-B9BB86D27264>
... 10 "Batch Request Failed" CKError's omited ...
}>
I hope it's somewhat helpful.