So I recently started playing ToTK, having finished BotW some time ago.
Playing through, all is well until I find myself in the Depths and having to return.
Selecting shrines or towers on the map gives no option to warp to them whatsoever.
Have I managed to softlock myself out of teleporting?
SOLUTION: I forgot I changed my health because fuck this tutorial. Changing it back to 3 before opening the second door makes it work.
Ah, ok, the trigger that unlocks fast travel is activate scene to push the door and then cancel it, so even with edited hearts you would have to cancel the door opening instead of succeeding to unlock it first, your other save is definitely boned.
You could find one of the columns and ascend to the surface, then find a piece of sky and rewind back up or shoot up with a tower, but that door is already opened and you’d never be able to fail and unlock fast travel.