Im not sure why it would disconect anyone, no matter what's inside the map.
All i know, there is a known bug in the game about weather and sky files, instead of sharing your *.fhw and *.fhs files you should share the *.cycle, *.weather, *.particle and *.sky files, otherwise all people will crash at same time on your map when ever the weather event happens.
If you already shared these files, then try to export your map again and see what happens.