Gil, I'm not sure what is going on, but I have it so that when I press an input key, the inventory will open. Upon play, I have a cutscene going on, so I have not spawn the player yet. During the cutscene, if I press the inventory input key, then after the cutscene is over and the player is spawned, the inventory will not open again even if I press the key. Not only that, all of my interaction events will not work anymore. The interaction hud will even refuse to show up too. If I don't press the inventory key during the cutscene, then everything will work fine. I'm on ork 2.16.0.
Try using a Requirement for your inventory menu screen's call key so that you can't call it during an event or when the controls are blocked.
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