Can't delete a document that is declared a record (because I can't undeclare record)

Question

We use in-place records management with regular document libraries. Users declare/undeclare records all day long.
I came across something strange where a document that was declared a record cannot be deleted. Typically, I can just undeclare the document (through Compliance Details) and then delete the document. When I try to undeclare, I click the Undeclare link (and
then refresh), but the document does not actually undeclare (the item still shows up as a record). I also tried undeclaring/deleting via PowerShell, but I constantly get the error: "...locked read-only"
Thoughts on how to get rid of this document?

Answer 1

can reproduce what you describe, the key point is that:
when you declare a document as record, it is a HTTP post command to the SharePoint document library allitems.aspx page.
after you undeclare the record, you might want to check the status of the document by refreshing the page, it will prompt you message like:
To display the webpage again, the web browser needs to resend the information you've previously submitted. If you were making a purchase, you should click cancel to avoid a duplicate transaction. Otherwise, click Retry to display the webpage again.
So, if you click Retry, another HTTP post command is sent and the document is declared as record again.
The correct way is to navigate to another page and navigate back again, you will see the document undeclared status.