Important note: Ship Size Restrictions!
Due to the current restrictions in Arena Commander, certain larger sized ships will not be able to be used and players will instead be granted secondary loaner to allow their owners to play in all game modes. For example, Constellation owners receive a Hornet for use in Arena Commander play modes.
This is not a bug and is intended. Check out the Loaner Ship Matrix to check if your ship is not currently available for use in Arena Commander.
Other Possible Rare Issues
Should you encounter any strange bugs, issues, or other technical problems that are unrelated to the above, please report the situation on the Issue Council with as much information as possible so that our teams can investigate properly.