I asked this question back in November Rstudio goes blank during long script run but didn't get an answer. Surely I am not the only person to have this issue? The only way to resolve it to quite the program in the task manager which is a nuisance. I have been using many versions since first posting and happens on all.
This is a general problem being tracked in https://github.com/rstudio/rstudio/issues/2038. It is a high priority to address in the next major version.
