Since we've started tracking non-wikipedia sites like English wikivoyage, I've had to update the URL scheme of the per-wiki limn dashboards. You can find the up-to-date list of dashboards here: https://www.mediawiki.org/wiki/Multimedia/Metrics#Limn
I've noticed that czwiki is empty due to lack of data (I presume that maybe Media Viewer wasn't in beta testing there, or that traffic was so low that nobody hit the EventLogging sampling). And fiwiki doesn't load, presumably due to a bug because there's definitely data for Finnish wikipedia in EventLogging. I'll look into that. All the other dashboards are fine.