I was writing an answer on the Minor Errors page, and I noticed that the editing options were gone (like that). I noticed I could still edit other answers like normal, and even my own answer after posting it. Before that though, the options are missing.
EDIT: In all subsequent tries at posting, the edit bar shows. Is it because of laggy internet or something?
Yeah I asked this before. Check out the question, it has the answer you want (albeit very brief).
Essentially you answered before the page had finished loading in. Either wait a while next time or reload the page, should fix it.
http://pokemondb.net/pokebase/meta/53290/error-answering-questions-whatever-theyre-called-buttons