InDesign 2021 does not show open files in a book

[OliverHevvy]

I use the Book feature extensively. Older versions of InDesign placed a dot to the right of the filename for docs in a book that were open. Indd 2021 does not. Is this something I have to turn on? If so how?

It's very annoying not to have it. See below for examples. 

 

[OliverHevvy · Accepted solution]

Well, as if by magic, I have dots for open files now...