Hi,

Did you verify those admin relations are whole and complete? Currently and same as a couple of week ago e.g. the main one shows as broken in OSM Inspector and if loaded into OSM, the missing parts show in absence of red line highlighting. Please see

https://www.openstreetmap.org/relation/4016746#map=12/45.2530/14.3760

(Possibly this is may have been caused by the same mapper who was doing data imports and broke the Adriatic Sea, in amongst half a dozen other boundaries and coastlines which we noticed in Italy too.

ciao