snack.expo.io after update facing problems with web preview of app

Hello everyone,
I worked on snack.expo.io last few days and everything was great, fast, real-time… until last update that happend 1 hour ago. Since then I am facing a lot problems with snack.
First when I put TextInput in View my preview of app is blank nothing shows.
If I worked with others things that are not causing white preview, then I have to reload page or to turn on/off device browser, if I want real time updates on my preview. (Even if update as I type is on in settings)
Does anyone facing similar problems? :confused:

can you share a link where this problem can be reproduced?

The problem occurs when was working in tajmer.js

It looks like it showed up between https://snack.expo.io/HJt11-5mS and https://snack.expo.io/SkOpyb9mH. If you could identify what change you introduced between those versions that causes the issue it would help to get to the bottom of things.