Using in two places doesn't work

If I do this:

```html
<h1>I am currently a <vue-typewriter-effect :strings="['cashier', 'builder', 'cleaner']" /></h1>
<h1>I want to become a <vue-typewriter-effect :strings="['doctor', 'lawyer', 'architect']" /></h1>
```

Then I get "I am currently a **doctor**" etc. (my second instance of the component in the place of the first!) and where the second one would go, I get nothing!