I am sorry that I have to remove the issue template. I wanted to first clarify with the react-native team if they consider below as a bug in which case I will be willing to submit a PR.

I realized that in the Vibration.js file (link below), there are a couple of calls to setTimeout without corresponding calls to clearTimeout to clean the handlers.

I am not sure if this is a bug or not. I found it while I was going through all the calls made to setTimeout in my project to make sure that the handlers are cleared.

If it is a bug, I would be happy to submit a PR.