I filed my form N-400 form on 8/19/2016, had fingerprints done a month later heard nothing until 6/282017 on web site says interview appointment...

No, not lost - I got a letter from them yesterday says my application is pending placement in scheduling queue, said the same thing on June 28, ...

I did my finger printing Sept 2016, then nothing until I saw that I was scheduled for interview and would receive letter in mail on 6/28/2017 no...