Help ! Stuck saving Thomas hutch

[Vincent]

All enemies dead, Thomas Hutch and all the soldiers in the extraction zone, and the mission is not ending.
Each turn, the game proposes me to cancel the mission.

What did I miss ?

[red255]

Thomas should disappear when he gets into the extraction zone.

screenshot.

but move him out and move him back in. probably a different tile, try dead center.

[Vincent]

Thank you for your help.

I save the game, quit and reload it, and that worked.

Surely a bug...