The main bug with canvases are not having an EventSystem in the scene.
This usually happens when you have your canvas as a prefab or adding it from one scene to another (by hand or with DontDestroyOnLoad).
The side effect to point that this is the problem: (adding it here so YouTube and Google will show it to people searching it
* The canvas is not interactable
* Canvas button not working
* Can't click on buttons on canvas
* Can't click on canvas and interact with it
If you want to learn more about the EventSystem:
[ Ссылка ]
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