Sankaku Channel/

If you look on this image you can see some really messed up stuff stretching across the screen: http://chan.sankakucomplex.com/post/show/926073

"Source: (C79) (同人誌) [Type-G (イシガキタカシ)] 俺とフェイトとワンルーム (魔法少女リリカルなのは)"

I've seen several others with a similar problem as well.