Stuck on "Preloading Textures ..."

Good afternoon! Your software is really good so far, but I noticed it isn't just me struggling with this one problem; the loading screen won't finish. I tried uninstalling and reinstalling the program in an attempt to fix the bug, but nothing changed. WHY?

It might be trying to find a value that doesn't exist, and then stop there. It should be easy to fix. :)

~Lucas9348, another random Minecrafter. :)