quiet delta
Has happened twice, after briefly opening the checkpoint menu (with the Cook/Teleport/Weapons option), the menu closes, and the game freezes, no option to move Laika, unable to interact with anything or even open the pause/inventory menu (though music still plays).
As it turns out, I've managed to replicate how this happens:
First I select the "Teleport" option, then, instead of selecting another checkpoint, I use L1/R1 to change into the other sub-menus, which makes the "Teleport" one an unusable black screen. If you then exit the checkpoint, and go back into it, the menu will display, but selecting "Teleport" again will close the whole menu, and the game freezes.