E.g. a transport won’t load, or naval units won’t go into a zone they normally can etc… I initially thought it was because of a game that had gone too long but I’m also seeing it in a game that is only in its second round now.
This might be caused by an outdated TripleA-version where errors like this one sometimes occurred.
Or your opponent and you maybe don’t play using an identical TripleA-version.
I can only guess due to a lack of details.
connection reset by peer: socket write error
I recommend to use the “Report” feature when the error message pops up. Or maybe address this directly to the developers: