In Nushlandia, a Delegate transition occurred due to R/D. This was marked on both national happenings on my nation Cupcake Roavin, as well as the world happenings feed:
12/30/2017, 6:57:04 AM GMT+1: Cupcake Roavin resigned from the World Assembly.
12/30/2017, 6:56:35 AM GMT+1: Cupcake Roavin became WA Delegate of Nushlandia.
12/30/2017, 6:56:35 AM GMT+1: Cupcake Roavin's influence in Nushlandia rose from "Zero" to "Power".
12/30/2017, 6:56:35 AM GMT+1: Cupcake Roavin relocated from Spear Danes to Nushlandia.
Since this was a same-second move, and other instances were also always very close, I could imagine that the nation got in as the region already began its update but hadn't started processing nations yet or something like that. Anyway, that's ostensibly a bug, so here's the report