I have Mark Read on Scroll and Hide read posts button enabled in settings. I’ve used the PWA and iOS app. Read posts still appear in my feed after hiding. Sometimes I have to click hide twice or the top posts are already read. Eventually after scrolling for some time, read posts either take over the feed (including posts hid that session) or appear interspersed with other posts.

My question is: is hiding not persistent? Is there another way to reduce the number of repeat/read posts in my feed?