That just means its been pulled into manual processing and its not in the system yet.  Super common this year.

Does where's my refund still say processing? Start there - then you know the IRS has it and it is working it's way through most likely manually. Nothing you can do.

Returns don't show up in "Where's My Refund" until a week or so before the refund is issued.  (It will say 21 days, but that's extreme.)  

As of July 24, 2021, IRS had 14.7 million unprocessed individual returns. 

Yep WMR is not a reliable source of current or correct info any longer.

If youve got an acknowledgement, they've got it, they just havent put it in the system..if its got RRC, UI or APTC on it, thats probably why.

I have a few that were sent in mid March and on WMR it says something like 'still processing a refund date will be provided when available".  

Another one that was sent in the beginning of March had that same message and then it changed to Refund Approved and then Refund Sent with the deposit date and amount (that was adjusted.....they claimed they didn't receive the $600 but must have according to the IRS).

All the ones that I know of that were being held up and were checked on WMR showed some type of message on it.

@TAXOH👍 same exact thing here for the two prior in limbo returns that eventually received their refund... Now yesterday another client called and their return is in limbo since mid-may... Same exact message that you referenced above...