That one just means that two players (or more) had the map open at the same time, and someone else in the FS contributed while they were looking at it. It happened to us repeatedly and had no detrimental effect on the progress, though it was confusing for some.
But there is no way we finished round 2 as none of our members had blacksmiths except the 2 that returned from trips today. And if someone was buying our way out of the blacksmiths that we didn't know about, it should have gone to round 3, not back to round 1.
Still, you could be right. I wasn't there and the reports did come from members who are newer. We do have lots of members with leftover badges that can be placed in round 3, so it could have been finished quickly and right back to round 1 before I even got there to see what was going on. I still doubt anyone bought our way out of 3 blacksmiths, though a couple times someone bought us out of a brewery or 2 so our badge burning party could continue. Yes, they were that tired of repetitive clicking.
Trying to get enough relevant info to determine if there is a problem with the game or a problem with member's understanding of game mechanics can often be a challenge. It is usually a problem with understanding game mechanics.