Blender isn't taking keyboard input,

this happens occasionally after I open blender for a certain amount of time

Welcome here,
that sounds rather like a hardware and OS specific thing. As you’ve added almost no info about that, I doubt people will be able to help you. But if its happening at blender starting you could temporarily deactivate all your addons and see if the cause lies somewhere in there. You should also check the console for errors.

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