ISP: BT Business Infinity

Type of Internet Connection: Fibre

Internet Connection Speed: 73Mbps

Date & Time: 27th March 2016, 1630BST (1530 UTC)

Frequency: Once (Did not reproduce)

World: Leviahan

Character Name: Cherry Muffin

Retainer Name: None

NPC Name: Fabrication Station (if that is classed as an NPC, since I interacted with it!)

Monster Name: None

Class/Level: GSM60

Party or Solo: Party (4 members)

Race: Lalafell F

In-Game Time: 12:00AM

Area and Coordinates: Company Workshop X:6.1 Y:6.0

Housing: Lavender Beds, Ward 3, Plot 30

Steps:
After progressing the project in progress (Tatanora-type Aftcastle, Phase 1/3) myself and another member of the party went to the Fabrication Station to add items for phase 2 at the same time.

The other party member got the menu up to add items to the project, but my screen showed no menu and I was locked on to the Fabrication Station unable to move my character, back out, teleport, exit the game etc.

Had to forcibly terminate the ffxiv.exe process to quit the game and log back in.