Can't replace word in multiple files with Rg when using vim's popup window with fzf#vim#with_preview()

Hello,
I am on **Manjaro Linux**,
**vim 8.2**
**fzf** and **fzf.vim** --> **latest** --> installed through vim-plug with
```Plug 'junegunn/fzf', { 'dir': '~/.fzf', 'do': './install --all' }```
```Plug 'junegunn/fzf.vim'```
I update the plugins every Monday.

- [ x] I have fzf 0.23.0 or above
- [ x] I have read through https://github.com/junegunn/fzf.vim/blob/master/README.md
- [ x] I have read through https://github.com/junegunn/fzf/blob/master/README-VIM.md

I've just noticed this, because I needed to replace a word throughout a project. So this is the code in question:
```vim
" FZF with Ripgrep
" allow passing optional args to rg command
" e.x. :Rg myterm -g '*.md'
command! -bang -nargs=* Rg call fzf#vim#grep(
\ 'rg
\ --column
\ --line-number
\ --no-heading
\ --smart-case
\ --hidden
\ --glob=!.git
\ --color=always '. , 1,
\ fzf#vim#with_preview({'window': { 'width': 0.9, 'height': 0.9 },'options': ['--layout=default']}), 0
\)

nnoremap R
\ :let @s='\<'.expand('').'\>'
\ :let @w=expand('')
\ :Rg w
\ :cfdo %s/s//g \| update
\

```
The work flow is ```R```, the word under the cursor is captured and you go straight to the *Rg* window where you can select the files you would like to change the word in, press enter, than ```:cfdo %s/s/ write new word here/g \| update```, press enter an that's it.

So when I try to replace a word the code stops in the popup window and this is shown ```:cfdo %s/s//g \| update```.
It completely disregards the Rg process.

But when I remove the ```'window': { 'width': 0.9, 'height': 0.9 },``` from ```fzf#vim#with_preview()``` it works as expected.
I don't know what am I missing here ??

I would like to know how can I make this using the popup window, 'cause is much better to see.

Thanks.