Coliseum achievement not popping?

Shelled out the $800k for the upgrades plus an enhancement - the astrogranite one from memory but nothing? Ill be mighty ticked off if Ive coughed up that much cash for nothing?

Just make a custom team, and buy the 4th stadium for free. Save yourself some trouble of playing down TV. Maybe that's why the achievement is broken though.

Resolved.
had to keep upgrading with first team that upgraded its stadium. Wouldnt work with another team once youve started upgrading apparently

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