fyi MS has finally woke up and pulled the busted update from the server... G guys if only people had told you it was busted
No 1809 has appeared here, neither on my home system nor on my work machine or traveling laptop. All have remained at 1803 without any other notices.
Yeah apparently it's deleting some users files
That's why I only have the C drive for the OS and applications, all data stored on backup drives.
Installed it on a Laptop and 2 PC's before it was pulled and didn't have any issues.