Old posts continuously appear in deviantart subscriptions

This has been happening for a couple of days. Subscriptions from other sites are working fine. Is there a way to fix this?

Looks like there was a problem on DeviantArt side and it’s resolved now.

There’s also a discussion on Reddit about the issue:
https://www.reddit.com/r/rss/comments/nll5uo/has_anyone_recently_gotten_weird_posts_from/

Thanks for the info.