PaidPostFileNameFormat is not working

[jacobsteffler]

The PaidPostFileNameFormat does not seem to be working.
I am using the string:
"PaidPostFileNameFormat": "{postedAt}_{id}_{mediaId}",
But the default format is used for paid posts.
This is the same exact format (copy-pasted) I use for free posts, so I am sure the format is valid, without typos.

OF-DL 1.7.83 on Docker.