iCloud synced logbook . having trouble - need help

[LA0FA]

I decided to go from a dropbox saved logfile which is basically non concurrently adressed/used by my iMac and my Mac Book Pro to the iCloud synced logbook. I can tell you I have now soon burned an entire weekend. After the initial setup and several hours before I could see a complete log in Mac Book Pro (I imported my logbook on iMac) it is still very unpredictable ... a simple qso addition in one of the Macs often take 20 mins to hours before it shows up in the other Mac (and also in iPhone/IOS version). Using Rumlog 5.20 on both machines.. 15.6.1 Segoia on Mac Pro and iMac ... now upgraded I Mac to 15.7.1 and still no improvement. Both Mac on same network, both Ethernet connected. No other network issues observed on any on the devices. Having approx 43k QSO in the database. Concept I iCloud synced logbook seems the right thing to do to avoid conflicts if two Macs want to access same dropbox saved loggfile. on iMac I operate my local rig, on Mac Pro I operate my remote rig/Flex8400 - I run telnet/spots from both mac's. Any advice and similar experience ?

[DL2RUM]

Stay patient! Initially it takes few days.