Date & Time: Encountered on 2022/04/25
Frequency: Always
World name: Siren
Character name: Helbrawr Cheetoh
Class/Level: 57 RDM
Party or solo: Solo (Entered with Marauder Hastaloeya, Conjuror Cecily, Thaumaturge Gota'a Panipahr)
Area and coordinates: Halatali
Steps:
1. Enter dungeon with Squadron members (command mission)
2. move forward
3. Squadron hits invisible wall and does no advance

Since squadron activities are still required for Grand Company rank advancement this is impeding advancement to the Captain Rank.