Unable to unity warp to Shedu

Platform: Windows
ISP: Oceanic Time Warner Cable
Type of Internet Connection: Cable
Internet Connection Speed: 10mb
Date & Time: Friday April 29, 2016 0300 HST
Frequency: Varies
Character Name: Voicememo
Race: Hume
World: Asura
Main Job: BRD 99
Support Job: WHM
Area and Coordinates: Unity NPCs
Party or Solo: Party with 6 total
NPC Name: Unity NPCS
Monster Name: Shedu
Steps:
Set unity target Shedu, some in party were able to use unity npc to warp to Caedarva Mire, while others could not. Even with Shedu set as only unity target some in party could not get the option to warp to Caedarva Mire.

The 3 that could not warp were not Captain rank, but 1 said they could warp there before even without captain rank. Is Captain rank a requirement for ToAU Unity nms for warping?