Unity UI Button Not Working? Why Clicks Do Nothing (6 Fixes)

Your Unity button looks fine but clicking it does nothing: no highlight, no onClick, no error. Shown with a real uGUI menu: the hover test that tells you where to look, a missing or duplicate EventSystem, the wrong input module for the Input System (Replace with InputSystemUIInputModule), invisible Images with Raycast Target on, CanvasGroup Interactable and Blocks Raycasts, onClick wiring and the AddListener loop closure bug, plus a RaycastAll debug script that names the object eating your clicks. Full guide (30-second checklist, debug script, FAQ): https://devforgeunity.com/unity-ui-bu... More Unity tutorials: https://devforgeunity.com Chapters: 0:00 Intro 0:38 EventSystem missing 1:17 Wrong input module 1:57 Invisible blockers 2:46 CanvasGroup and Interactable 3:07 onClick wiring 3:54 Find the blocker 4:40 Recap #unity #gamedev #unitytutorial #unityui #indiedev