I can reproduce this reliably:
- Add a custom blocking rule
twitter.com##a[href="/vladquant"]
- Click the link below:
Expected: The post avatar and other links to the profile should be hidden
Actual: The avatar is still visible
Sorry for the weird example, but I had to use embedded media to force the page to open a new tab. A regular link reuses the same tab on this forum software.
Refreshing the Twitter page fixes the issue for me. I've also seen this when opening a new tab and pasting the address. But it doesn't happen reliably.