593.564 Loading script.dat: 10120832 bytes.
593.573 Checksum for script C:/<redacted>/Factorio/temp/currently-playing/control.lua: 1735894310
593.574 Checksum for script WireShortcuts/control.lua: 2395334676
593.577 Checksum for script aai-industry/control.lua: 2028173134
593.579 Checksum for script aai-signal-transmission/control.lua: 2864667130
593.582 Checksum for script actual-craft-times-remade/control.lua: 3770996488
593.588 Checksum for script custom-map-colors/control.lua: 4008520782
593.591 Checksum for script DiscoScience/control.lua: 3734133783
593.595 Checksum for script grappling-gun/control.lua: 3254250820
593.598 Checksum for script informatron/control.lua: 791590929
593.604 Checksum for script jetpack/control.lua: 2104331437
593.606 Checksum for script robot_attrition/control.lua: 1761618108
593.611 Checksum for script shield-projector/control.lua: 3360108861
593.612 Checksum for script space-exploration-graphics/control.lua: 17466373
593.613 Checksum for script space-exploration-graphics-4/control.lua: 17466373
593.625 Checksum for script Todo-List/control.lua: 3829494964
593.639 Checksum for script Milestones/control.lua: 3029878150
593.650 Checksum for script ModuleInserter/control.lua: 3713033641
593.687 Checksum for script PickerDollies/control.lua: 2554334069
593.719 Checksum for script RecipeBook/control.lua: 573499505
594.027 Checksum for script space-exploration/control.lua: 2371863861
594.097 Checksum for script factoryplanner/control.lua: 947432809
594.099 Checksum for script discovery_tree/control.lua: 745888149
594.117 Checksum for script RateCalculator/control.lua: 340332318
595.695 Error ClientMultiplayerManager.cpp:1130: mod-Milestones was registered for the following nth_ticks when the map was saved but has not re-registered them as a result of loading: 240
595.696 Error ClientMultiplayerManager.cpp:98: MultiplayerManager failed: "" + multiplayer.script-event-mismatch + "
" + "
mod-Milestones"
595.696 Info ClientMultiplayerManager.cpp:592: UpdateTick(28258807) changing state from(ConnectedLoadingMap) to(Failed)
601.408 Info ClientMultiplayerManager.cpp:210: Quitting multiplayer connection.
601.409 Info ClientMultiplayerManager.cpp:592: UpdateTick(28258807) changing state from(Failed) to(Disconnected)
602.182 Info UDPSocket.cpp:218: Closing socket
602.182 Info UDPSocket.cpp:248: Socket closed

I should be able to recreate it if you need more info from the logs or if you need more info.

I think I know what the issue is. It has to do with the delayed chat message that appears 4 seconds after the game start. If a player joined before that appeared, that would cause a desync.

Please try the version I just pushed (1.0.3). I did not test it in multiplayer myself, but Factorio's "heavy mode" is no longer detecting an issue, where it did before, so I think it should work.

Finally got a chance to test this. Looks like it's working fine. I'll let you know if there's any further issues. Thanks for the mod, I love it!

I am getting this error message with K2+SE. Starting happening randomly after about 30 hours of gametime.

Can you copy paste the error message?