If you have element hiding filters enabled and you use twitter all hash tags inside twitter go missing. There is an empty space where the hash tag should be, but you do not see the text. Disabling the element hiding filters feature makes everything go back to normal.

Howto recreate the issue:

• Enable Adblock+ element hiding filters
• Go to https://twitter.com/nasahqphoto/status/526911410551676929
  • The unaltered text reads: An image has been added to the @OrbitalSciences #Orb3 Mission gallery https://flic.kr/s/aHsk5CPmk2 #ISScargo #NASA
  • With the filtering enabled it reads: An image has been added to the @OrbitalSciences Mission gallery https://flic.kr/s/aHsk5CPmk2