There are a bug with texture Ender for the ressource pack : I have sent an issue yesterday, but I realized that there was a problem for the text only in the textures packs, and not for the default. When you launch with a texture pack, at the end of launching, there are a black screen, and the text is bugged.
But when you launch with the default pack, you haven't a black screen and the text is normal.
I think that is a problem with Texture Ender.
Tanks and Thanks for Mojang for Minecraft, the best play of the world