R: issue with interactive mode

Question

I have followed this tutorial on R blogger to create a file extension .Rexec to be able to run scripts on double click, without opening RStudio. The script is supposed to do the following :

1. Select file to be used as data input

2. Select the decimal separator

3. Render a .rmd with the two above elements as parameters.

At some point, I succeeded to run the script and generate a report. But now, for an unknown reason (I did not update R (which is R-4.2.2patched) nor RStudio (2023.06.1 Build 524) since then), RScript now executes the script in batch mode instead of interactive mode.

test.Rexec is the following:

    interactive()

    readline(prompt="What is your First name ?")

    datainput<-choose.files()

    rmarkdown::render(
      input="test.rmd",
      params=list(datainput=datainput))

    for(i in 1:100) {
      cat(".")
      Sys.sleep(0.01)
    }

test.rmd is the following:

    ---
    title: "Untitled"
    output: html_document
    params:
      datainput: 
        input: file
        value: "test.txt"
    ---

    ```{r}
    read.table(
      file=params$datainput,
      header=TRUE,
      sep="\t")

test.txt is the following:

    x   y
    1.5 2.1

When double clicking on test.Rexec , I can see that interactive() returns FALSE, which confirms that the problem is likely related to the interactive mode. I can select a file, but any other interactive function such as select.list or readline(prompt="...") results in an unexpected termination of the process when it is reached. The render function also induce a crash, making the whole thing unusable.

test.rmd is rendered perfectly when I execute each line of test.Rexec one by one in the console of RStudio. I read on this question that there was a package interactivity that allowed to change this, but it is now archived. Following this question tried creating a file test.bat with the command :

echo source("C:\Users\...\test.R") | R.exe --ess --vanilla without success. Replacing `R.exe` by RScript.exe and Rterm.exe with and without --vanilla also resulted in failure.

The user is not supposed to type any command in a terminal/console by himself, so suggesting to type execute from a command is not an option in this case.

I guess that if you follow the same protocol as explained above, things should go fine. I don't know what I may have done to mess up with RScript and I am therefore unable to reproduce the problem. Did someone had the same issue ? Can someone explain to me how to execute my script in interactive mode so it runs as expected ?