Can't Work with Pixels Anymore?

[Softly]

I have Gimp 2.8.10. I went to work with pixels today. Found out all of the default brushes when put at 1.00 px size, become blurry now! They never used too. Come on. So far, the new Gimp has been nothing but terrible. I used to love Gimp, with this update, I can't stand it.

All I've ever used for my pixels were the default brushes, I don't have anything else. I'd set them at 1px on the Dot for Dot setting and use them with no problem. Now, they're creating such blurry lines, it's impossible! What the hell? I'm really upset about this! What am I supposed to do now?!