Windows 10: Red x on all of my folders in file explorer since 1903 upgrade

So I upgraded to 1903 all appears to be working. But when I look at files explorer, everything has a red circle with a white x in the middle of it. My files seem to all be here and working. So what's the deal??

:)

 

File Explorer shows red "x" mark at a folder name

File Explorer shows red "x" mark next to a folder symbol, however this folder is accessible and seems all right. What does red "x" mark mean? Thank you

 

What does the red x showing on files and folders in file explorer indicate

What does the red x showing on files and folders when using file explorer indicate?

 

what does red x mean in file explorer?


I just purchased a new laptop with presumably latest Windows 10. Working through some stuff I now see red circles with an "X" inserted by some File Explorer folders - some very important like "Documents". I tried restarting File Explorer and rebooting the computer but the symbols remain. Also, trying to access some files that I thought were saved are missing. Maybe I didn't actually save them or maybe there's another problem like trying to save to an "X"d folder.

What do these troubling symbols mean and how can I return to a clean File Explorer?

ADDED LATER:

Still looking for a solution I found here that the problem may be related to MSFT One Drive, which I was working with when the problem surfaced. As far as I can tell from the help, the "sync" operation is working. One Drive works okay on my desktop machine and no red x has ever shown previously or now.

Then, I see that the avast antivirus program may use a red x? see the screen capture. but Avast says no threats. Also, McAfee came preloaded on this new laptop and I'm unfamiliar with it's notifications and maybe the red x means that Avast is not working because McAfee is??

just some more clues.....