Pop-Up Alert to Share Sheet When Assignee is Not Already Shared to Sheet

Anyone aware of a feature that stopped working this past month where a pop-up message would appear to overlay on top of your Smartsheet project when you go to assign a task to someone who is not already shared to the sheet? This stopped working recently, but I don't have a screenshot anywhere to show Smartsheet what this looked like. If we assign tasks to users and they are not shared to the sheet, we may not be aware. The user will get a notification via Email of the assigned task, but they won't see this task appear on their dynamic Task Report. Smartsheet is not aware this feature stopped. Anyone else seeing the same or has an old screenshot so I can share with the tech team?

Thank you.