We Were Here Tomorrow softlock: reload your checkpoint
When a door, item or puzzle stops responding, Total Mayhem Games' fix is to reload your checkpoint: go to the main menu, choose change, then start new journey, and have the host re-select your last checkpoint. Its Known Issues list says this clears several launch bugs, including staying shrunk after crouching while small, a vanished walkie-talkie and the empty hand icon disappearing. If the door after Dahne's lab stays shut with the green card in place, players report that fully closing and relaunching the game fixed it.
