And you also use the same log settings I suppose. I dont really know how the network traffic works with rcon commands and logs and stuff, but maybe it could be that your US servers somehow timeouts or something? One solution to this might be to check if the Daemon got any timeout settings, don't know about this myself, and cant check at this time, and second alternative that also requires some work, to setup another daemon running geographically closer to the servers..? Not maybe the best solution