UPDATE: The issue has now been fixed.
MP UPDATE: Thank you for your patience. We have resolved the Search and Destroy issue [https://t.co/zDdUKYEMRK]
— Infinity Ward (@InfinityWard) July 3, 2014
Earlier today, with the newest Call of Duty: Ghosts title update, the update caused a glitch in Clan v Clan SnD & Private Match SnD. The glitch resulted in players being unable to actually defuse/plant a bomb in the game.
Infinity Ward has stated that they have found a fix for the issue and it will be released sometime tomorrow.
UPDATE: We've figured out the S&D plant/defuse issue in #CODGhosts and will have a fix out tomorrow.
— Infinity Ward (@InfinityWard) July 1, 2014