Hello Chuck, On Monday, 27 Sep 2021 at 23:40, Berry, Charles wrote: > Jeremie, > >> On Sep 27, 2021, at 3:56 PM, Berry, Charles wrote: >> >> There is something in my init that doesn't play nice with this. > > (setq ess-inject-source nil) Thanks for the feedback. With the following patch, I made sure that ess-inject-source is set to default before evaluating the buffer. So even if I set (setq ess-inject-source 'function-and-buffer), I get the following output. Note that I get the same output in the IESS console buffer when I execute the command following command. #+begin_src R :session *R* :results output :async yes Sys.sleep(2) 1:5 10:20 1:2 #+end_src #+RESULTS: : [1] 1 2 3 4 5 : [1] 10 11 12 13 14 15 16 17 18 19 20 : [1] 1 2 It might be good to fix this on the ESS side. I'll see what can be done, but I'd appreciate any input you might have on this. Thanks again. Best regards, Jeremie