Keyboard and mouse input ignored when opening Intern Menu for the first time (during tutorial)
Environment:
Windows 10, standard launcher options, Steam installation. Display mode - borderless windowed. Controls method - Keyboard/mouse. All game options are at default.
I ran into this issue when opening the Intern Manual for the first time.
When I cycled over to the skills tab by pressing E as instructed, I attempted to click on another skill besides the one that was highlighted/displayed by default. This caused a soft-lock, ignoring all game inputs. After tabbing in and out of the game a few times, I saw that other users were able to bypass this issue by pressing WinKey (Super), then clicking into the game and pressing E. This resolved the issue for me.
Amazing game so far by the way.

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Nathan commented
Same issue, Windows 10 Steam version, fullscreen. I didn't get it when I first got the manual though. At first I thought it was only after looking at unique items but I just got it after opening the manual.
It seems random when it occurs, except for being just after hitting some button getting to/in the manual. I've gotten it about 3 times and just finished the Casino level. Thankfully the checkpoints mean I haven't had to re-do anything yet, but it's an annoyance.
Also yes other then this one issue it's been a great game!