Hide read posts not working

**Describe the bug**
I have setup hide read posts in settings, but they're not being hidden, even on refresh or application restart.

I have account on lemmy.world.

**To Reproduce**
Steps to reproduce the behavior:
Settings:

In lemmy UI, disable hiding of read posts.

1. Open post
2. Go to feed
3. Refresh feed

**Expected behavior**
Read posts are hidden.

**Screenshots**
If applicable, add screenshots to help explain your problem.

**Desktop (please complete the following information):**

- OS: iOS
- Browser Safari
- Version 18

**Smartphone (please complete the following information):**

- Device: iPhone 15 Pro
- OS: iOS 18
- Browser Safari
- Version 18

**Additional context**
Add any other context about the problem here.