Lost USB key, is there any way to use it again if I use Zero Downtime?

I have just moved my studio and I can’t find the USB dongle with my licenses!

I have two dongles, one of them is about 15 years old so I replaced it a couple of months ago as a safety precaution. Now I put the old dongle in my wallet and the new, with all my licenses, is in one of all the boxes with stuff. A bad mistake, but now it’s the fact and I don’t have the time to search all the boxes for the new one.

If I use the Zero Downtime and transfer all my licenses to the dongle I have, is there any way I can use the other dongle again? Or do I have to buy another to have a new dongle?