Posting this here as sort of a hail mary, hoping that this is even JAMF related. We use JAMF Pro and recently our users have reported seeing alerts that are blank and have a no symbol over an Application Folder icon that is circa 2014 in style. The icon also has a strange outline that reminds me of what the Casper icon used to look like back in the day.
Users claim that the prompt keeps popping up and they can dismiss it but there is no text or label information so its unclear if its actually JAMF or some other system on the Mac's. If anyones ever seen this before please let me know. Thanks!