The most common reason a Knight becomes unassigned is not having enough Gold in your City.

This can happen if:

• You forgot to add Gold to your City.
• Your City was attacked and the attacker stole your Gold before you opened.
• You added more Gold afterward but didn't notice that your Knight had already been unassigned.

Other possible reasons:

• You forgot to activate Marshal.
• The game did not properly register the Knight assignment, equipment, or embedded jewels. Refresh your game to check that everything is correctly assigned.
• You used a reinforced Knight instead of assigning your own.

Important: A reinforced Knight will only remain on duty while at least one of the troops sent with them is still alive. Sending one Supply Wagon along with the Knight is recommended, as wagons are among the last troops to be killed.

How to Avoid This:

• Make sure you have enough Gold before opening your City.
• Assign your Knight as Marshal and refresh the game to confirm the assignment.
• If your Gold is stolen, add more Gold, unassign and reassign your Knight, then refresh again.
• If using a reinforced Knight, ask the sender to include at least one Supply Wagon.
• Consider assigning your own lower-level Marshal as backup.
• Ask a trusted player to send a test attack with one troop to check that your Marshal is correctly assigned before opening your City.