I see a small confusion so excuse me if I did not express myself clearly, It's a custom map that I have downloaded, I didn't make or edit it myself nor do I know how if I wanted to. I've seen a guy playing this map multiplayer on youtube and thought I'd give it a try, it figures now that short game option did make an issue, and bypassed that error, but then I ran into another "Reconnection error" In case of multiplayer. On skirmish it works just fine.
No clue how to deal with that...
Not sure if that file from the error logs would be helpful
SYNC_CNCNET0.TXT_20_4_2018_11_50.TXT