When talking with Durance about what he knows about the local region, the subject of the Vailian Republics is raised (shockingly, he doesn't like them.) Members of the culture-group for the Vailian Republic are able to respond ('I'm from the Republics, is that going to be a problem') with indignation. However, members of the Old Vailia culture group are also able to respond that they are from the Republics, even though they are not.
TLTR: Old Valian culture is wrongly given Vailian Republic responses.
Steps to Reproduce: Talk to Durance (at any time, as far as I know) about what he knows about the region and its history with a character with the Old Vailia culture group. Talk until Durance complains about the Republics.