VVER-1200 is used in Hanhikivi Nuclear Power Plant built in Finland by Russian Rosatom. This particular power plant uses comprehensive "package" with extra safety features and also a lot of European equipment. Yet, the regulators still identified a considerable list of issues to be addressed.
Belarus, on the other hand, opted for the cheapest "basic" package with the bare minimum and pretty much "winged" the whole construction, ignoring all foreign concerns.