Rstudio breakpoint not hit in modules

I have an rshiny app with modules. I use Rstudio to run the app. The breakpoints that I set in modules don't get hit. I use browser() to get around this - which works consistently. The breakpoints in the main app file (where shinyApp() is run) are hit without a problem.
What can I do to hit breakpoints consistently in modules without using browser?

Cross posted here

Please familiarize yourself with our cross-posting policy.

I didn't get any answer there. I thought this place has more "active" rstudio experts. Thank you.