I am combining both problems into one because they have common themes, although they are probably not directly related.
Under uncertain circumstances, a problem may arise that makes it impossible to interact with the hands of the character. You can not take things in your hands and remove them from your hands, as well as use the shortcut buttons. If I'm not mistaken, you can still pick things up directly in the inventory, if you have enough space and can probably throw things out of the inventory.
The second problem occurred recently and was the same as described above, but with one small correction - I could not open the inventory.
I pressed the button and nothing happened.
The playback conditions are unknown to me.