Now, both of these buttons function correctly. problem is:
When playing in editor, if I click outside of buttons it activates Player Controller, which means it’s suddenly possible to move around in level while menu exists - and when this happens it’s not possible to get back to menu to click buttons.
When playing as a standalone game, menu is visible, but not functioning. Which means I can walk around in level, but not click menu buttons.
Therefore, guess I need to know how to deactivate Player Controller as long as menu is visible.
You could add a bool variable something like bCanPlayerMove and set it to false in beginplay in main menu level and in your main level set it to true. Then you can just branch in your character bp and only allow movement if its true (assuming you’ve got your main menu as a separate level like initial post).