pretty much, as the title says, quests that have the requirement that you have completed a different, listed quest, do not work / launch.

immediately the "requirement failed" message will display upon attempting to start the quest.

a better explanation: if I have 2 quests, A , and C-

and to Start quest A, I must have completed quest C...

even after having completed and received the rewards from C, quest A still will display the "requirements not met" message.

Please create a new, updated ticket if this is still an issue. Thanks!