Game does not pause when offline

The game does not pause when offline or on airplane mode, even when turning the internet on afterwards. It only works when connected to my Nintendo account. Pausing still works afterward even if disconnected later, but as soon as the game is exited and reloaded, the problem persists. I don't understand why I need to be connected to the internet for this single-player feature to work, especially when pausing the game is most important when in a location where there is no internet (on-the-go, or on a trip), and there will be plenty of times I need to get up and do something, creating the need to pause it.