Nexus Cape Failing To Take Effect

Platform: Windows 7
ISP: AT&T U-Verse
Type of Internet Connection: DSL
Internet Connection Speed: 4.89Mbps
Date & Time: Aug. 29, 2016 08:31 AM
Frequency: Always
Character Name: Leocon
Race: ElvaanM
World: Siren
Main Job: Paladin 99
Support Job: Warrior 49
Area and Coordinates: Mhaura
Party or Solo: Party 3 members
NPC Name: None
Monster Name: None
Steps:

For the last month or so whenever I try to use the Nexus Cape to warp to the party leader, the animation will go off and the cape's timer will begin the the 20 hour cool down time, but I don't actually warp to the leader. Instead my character turns invisible for a few moments then becomes visible again. It's happened every time I've tried to use the Nexus Cape since mid-July. It also happens on my alternate characters.

I can vouch for this. I happens no matter which zones the user or the leader are in.