Active Squad Stuck as a Concept Squad

I am encountering a game-breaking bug in Ultimate Team where my fully built, active squad has been converted into or is being treated as a Concept Squad.

• When I attempt to enter a match, my screen is blocked by a message that reads: "Concept Squads are not eligible to play matches.".
• When I check the Squad Selector menu, my main squad ("Essen Fortuna") is incorrectly located under the Concept Squads tab, even though it is clearly marked as my (Active) squad.
• This is a real squad with owned players (91 Rating, 32 Chemistry in a 4-3-1-2 formation), not a concept build.

Because the game forces my active squad into the Concept category, I am entirely locked out of playing matches with my team.

Platform: PC

Game Mode: Ultimate Team

Version: FC 26