If you recall, Fukushima I (or Daiichi) was not the only nuclear power plant damaged by the March 2011 earthquake at Japan, even if it was the worst damaged one. We never heard much about the other affected atomic sites but were never either reassured that they were alright either. In any case it was a less important concern compared with Fukushima I.
Now it seems that the other nuclear power plant of Fukushima prefecture, Fukushima II (or Daini) also has serious problems. According to Ex-SKF, which is a reliable source of information on the nuclear catastrophe (unlike mainstream media mostly):
Hiromitsu Ino, said a Containment Vessel at Fukushima II (Daini) is broken, and they are trying to repair it.
This was reported at a workshop of concerned Osaka citizens against nuclear debris.
Ex-SKF also mentions in this regard that:
I still remember a tweet last summer (I think) saying an acquaintance fleeing from the area near Fukushima II Nuke Plant right after the earthquake saw a smoke coming out of one of the reactor buildings (there are 4).