This is the same problem from this reported bug, but with additional video footage
http://forum.square-enix.com/ffxiv/t...Invisible-Wall

http://www.youtube.com/watch?v=cg0Sy2pxnJ8

Issue: An invisible wall prevents the player from entering the final boss in TotoRak. Issue occurs when a party member is behind the group when the boss cutscene occurs. This wall is along the path where spiderweb walls usually spawns.

Time: 3:13am EST 2/12/2014
Frequency: Occasionally
World name: Hyperion
Character name: Dalimin Dataru
NPC name: N/A
Monster name: N/A
Class/Level: White Mage 50 (synced to 27)
Party or solo: Party
In-game time: N/A
Area and coordinates: Thousand Maws of Toto-Rak: 14x 8y
Steps:
1. Stand behind what appears to be a spiderweb arch, where normally a spiderweb wall appears
2. Have party member ahead of you trigger the cutscene for the final boss
3. Skip/Escape the cutscene to find yourself trapped behind the invisible wall