Troubleshooting Shadify Not Working
Check Pack Order
If Shadify is active but you see no change, other resource packs may be overriding it. In Options → Resource Packs, drag Shadify above any other packs in your active list. Packs higher in the list take priority over those below.
Verify Installation
Confirm the pack appears in your resource packs folder and shows as available in the menu. If it doesn't appear, reinstall it to the correct location.
Reload Your World
Resource pack changes sometimes require a world reload to take full effect. Exit to the main menu and re-enter your world. You may also try pressing F3 + T (or equivalent) to reload textures.
Check Shader Conflicts
If you're using shader mods, they may override Shadify's texture changes. Disable shaders temporarily to see if Shadify works without them. Some shaders apply their own shading system that conflicts with the pack's approach.