I have downloaded texture packs such as CoterieCraft_6 and Faerielight1.7.2 on minecrafttexturepacks.com, when I used the textures on 1.7.4, they worked but my screen went all gray and I found blue and red outlines of everything. I deleted the textures and worlds but the bug will not go away.

When I downloaded these textures, I expected everything to change into a different theme, even though it did work, both packs caused a bug.

After the packs have been used, the screen went gray, and there were red and blue outlines of everything.

1.Go to minecrafttexturepacks.com and download the 2 textures,"coteriecraft_6" and "faerielight1.7.2"
2 Use the textures and the screen blacks out