Plus the Clandestines'/Djinn's world is NOT a different version of "our" universe so I don't think established multiverse and/or time travel rules for our universe apply here at all. Aisha found the bangle on a blue-armed corpse so it would seem it's also from the Djinn's world, meaning it's abilities (& therefore Kamala's) are not governed by the rules of our universe. So depending on what Kamala needs to do going forward maybe that thing can mimic the Time Stone (upgraded to include Tony's time travel GPS programming) , America Chavez's abilities, etc..