If you press select raw, it brings you to the "Redundant" tab am i right?
thats the "wrong" sprite.. if you go to wall brushes and paint a little bit and right click on it, you will get the "select wall brush" option available.
also, not all sprites are able to be used as brushes as there are no brushes made for them, so then raw is the only option for these.
You can make your own brush with a little bit if XML coding, or download already made extensions..
i would recommend
this one by RokojoM
if you dont have the extension installed, i bet that is the problem because there is no brush for the blood ground or that wall sprite in the "original" rme if im not wrong.
but if you have newer 11+ sprites then they wont be added to any...