try a cache clear then try again...if still persists after that, contact support
Thank you! Did indeed try all of the standard options for troubleshooting (to no avail).
Also contacted support, who have since confirmed that this is a known issue and has been passed to the appropriate people.
What confused me was that Arendyll (a slightly larger city) was perfectly fine on the same device.
Haven't tried accessing Felyndral city with Browser yet. If the problem persists tomorrow, that will be the next step.