I used AnkiDroid 2.0.3 and had created a filtered deck to review the cards. Some of these cards are what's called sibling cards. When I click "Rebuild" button, I get all 118 cards, but as soon as there's exactly 16 cards left (presumably because there's 16 sibling cards), the remaining number is turned from 16 to 0 and AnkiDroid asks me to unbury these!
And if I do unbury them, instead of seeing two answer buttons (OK and FAIL) I see the normal 4 buttons that's used for normal review.
Downgrading AnkiDroid to 2.0.1 solved this problem (I didn't test 2.0.2).
Note that this works correctly with Anki Desktop 2.0.10.
Is there some option one can enable to fix this in 2.0.3?