[Bug] Subscriptions stopped working on Niconico

[kgmt0]

Checklist

• I make sure that the issue is NOT a duplicate of pinned issues
• I make sure I am using the LATEST version - check here
• I understand that issues with limited impact, such as those occurring on specific devices or under specific network conditions, will not be fixed
• I have attached the error report in the issue

Describe the bug

Starting a few days ago, subscriptions on Niconico no longer work. Nothing appears on the What's New tab even after refreshing multiple times. If I directly open an uploader's page, the video tab is always empty. Other tabs (Playlists, Albums, Info) seem to work fine, and videos also play without issues.

Version

5.2.0

Frequency

Always (100% of the time)

Device

Android 14

Steps to reproduce the bug

1. Add a few subscriptions from Niconico
2. Navigate to the What's New tab and refresh
3. Observe that no videos appear

Additional context

No response