Upgrade Gold to Game Pass Ultimate?

That means your gold was upgraded to Ultimate (Ultimate includes Gold, Game Pass for Xbox, and Game Pass for PC)

When you upgrade from standard Gold/Game Pass to Game Pass Ultimate, you upgrade at a ratio of 1:1.

The 3:1 conversion ratio is what happens when you already have Ultimate and are adding standard Gold/Game Pass to Ultimate.

I would suggest upgrading to Game Pass Ultimate. Ultimate includes Gold, Game Pass for the console, it's cheaper than purchasing Gold and Game Pass separately.

did you upgrade to Game Pass Ultimate after getting the code for 12 months Live Gold?

if you upgrade it will say that the Live Gold is cancelled.

if you did upgrade, check that your Game Pass Ultimate is active.

if it is active then everything is working as it should be and you will still have all the features of Live Gold, but they will be under your Game Pass Ultimate subscription instead.

Do you have standard Game Pass or Game Pass Ultimate? Gold is needed to play online. Gold is included with Game Pass Ultimate, but not standard Game Pass. So if you only have Game Pass, you either need to add Gold or upgrade to Game Pass Ultimate.