That may only apply to the US V1s then, because I own a Europeon V1 and it always ages when it wakes up.I'm not too sure if this applies to all V1s, but I know my US V1 only ages after a full 24 hr has passed since it was born. It it was paused, it would delay aging by the amount of time it was paused.
It would be as a result of a glitch. You can maybe try restarting your Tamagotchi to see if that does anything.
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