You may be experiencing some browser-related issues. That said, try performing troubleshooting steps to isolate where the issue comes from.
To start with, try reviewing the updates on an incognito window. It is the best place to identify browser-related concerns. I've added these keyboard keys to open one:
Google Chrome: Ctrl + Shift + N
Mozilla Firefox: Ctrl + Shift + P
Microsoft Edge: Ctrl + Shift + P
Safari: Command + Shift + N
If it updates, you can go back to a regular browser and clear its cache . Once caches are piled up, it can cause unexpected issues on the opened pages.
You also have the option to switch to a different browser like Google Chrome, Mozilla Firefox, Safari, or Microsoft Edge.