{.mobile} not working well with storyboard

I'm trying to build a Storyboard that shows different plots inside the same section when device is mobile or not mobile.

When using {.mobile} to build a simple flexdashboard, everything went right. But, when I tried to do this with storyboard, the output is a file that shows duplicated section with blank plot on the one that I used the {.mobile} parameter.

Can anyone help me with this?

Here is my simple code:

---
title: "Mobile Specific Component"
output: 
  flexdashboard::flex_dashboard:
    storyboard: true
---

### Chart 1 {.no-mobile}
    
```{r}
plot(cars)

### Chart 1 {.mobile}

```{r}
plot(cars)

Reproduce the supplied R Markdown with flexdashboard storyboard mode, comparing the simple dashboard behavior with the storyboard output. Check why the {.mobile} section creates a duplicate with a blank plot; done means mobile and non-mobile sections render once each with their plots visible.