Screenshot 1 in script mode: Please enlarge the image to see more details…
Screenshot 2 in manual mode: Delete the accept alert row
screenshot 3 back to script mode: Line in block comment is also deleted with the accept alert
Unfortunately the same happened today to me. Furthermore, it’s not only restricted to deleting in manual mode but also adding new step in manual mode. I.e. when commented out lines are at the end of script and I switch back to manual mode and add a step then commented out lines are deleted in script mode.