Please report all multi-player bugs and crashes from the 20th of February 2018 (release v38 = SVN Revision ????) When posting a an OOS, a bug or a crash please include The version of C2C you are using; The logs from all computers (especially the OOS log in the BtS exe folder and the random log in the normal Civ Logs folder). Important changes that you need to make for multiplayer games In Assets\XML\A_New_Dawn_GlobalDefines.xml, the following tags should be adjusted to show as: Code: <Define> <DefineName>USE_MULTIPLE_THREADS_SPAWNING</DefineName> <bDefineBoolVal>0</bDefineBoolVal> </Define> <Define> <DefineName>USE_MULTIPLE_THREADS_PROPERTY_SOLVER</DefineName> <bDefineBoolVal>0</bDefineBoolVal> </Define> and Code: <Define> <DefineName>NUM_CITY_PIPELINE_THREADS</DefineName> <iDefineIntVal>1</iDefineIntVal> </Define> To run an MP game without many OOS errors. Multithreading causes problems for MP play. However, Alberts2 was saying a while back he was doing something to get the game to automatically switch multi-threading off in an MP environment - some of these may be safe to leave at default. But I recently discovered that the property solver one is still an issue if its on. I've also solved a combat based OOS and will be committing that solution shortly. I've found one that has to do with what I think is an event that awards somewhere around 2k gold potentially. Something about how the event played out caused an OOS but its very rare. The matter discussed above about the wonder building has to do with trying to build the same wonder as your team mate so if you communicate what wonders are being built you can avoid that problem. The naming issue is in all OOS reports and appears to be a safe local difference on both systems.