shinyCAPTCHA does not trigger the validation properly - shiny

Question

I would like to integrate captcha verification into my shiny app (like this). But it has an unexpected behavior.
If this line:
recaptchaUI("test", sitekey = "6LeIxAcTAAAAAJcZVRqyHh71UMIEGNQ_MXjiZKhI")
is inside the UI, my app works fine (I mean, the validation is triggered when the checkbox and the button are clicked)
However, if it is inside renderUI, the validation is triggered only by clicking the checkbox (there is no need to click the button)
Here is my minimal working example:
library(shiny)
library(shinyCAPTCHA)
ui <- fluidPage(
# With this line, the captcha works perfectly
recaptchaUI("test", sitekey = "6LeIxAcTAAAAAJcZVRqyHh71UMIEGNQ_MXjiZKhI"),
uiOutput("body")
)
server <- function(input, output, session) {
result <- callModule(recaptcha, "test", secret = "6LeIxAcTAAAAAGG-vFI1TnRWxMZNFuojJ4WifJWe")
output$body <- renderUI({
fluidPage(
# Inside renderUI, it does not work properly.
#recaptchaUI("test", sitekey = "6LeIxAcTAAAAAJcZVRqyHh71UMIEGNQ_MXjiZKhI"),
uiOutput("humansOnly")
)
})
output$humansOnly <- renderUI({
req(result()$success)
tags$h1("For human eyes only!")
})
}
shinyApp(ui, server)
I have an app with several modules, that's why I need to use renderUI. What is the error in my code?
I appreciate any help!