Cannot find MLB The Show 24

That game was recently removed from Game Pass/cloud gaming. So you would have to purchase it if you want to continue playing it.

Yes, it will be available on the One. There is a standard edition for the One and both the MVP and Digital Deluxe Editions include the One version. https://www.xbox.com/en-US/games/mlb-the-show-24#purchaseoptions

Hi, Phil! Thank you for reaching out.
I'm AJ, an Independent Advisor for the Xbox Community.

Both the Xbox One and Xbox Series S/X versions of MLB The Show 24 are still included in Game Pass for Console and Game Pass Ultimate. For your reference, both of the games' listings have the "Included with Game Pass" button:

Xbox Series S/X - https://www.xbox.com/games/store/mlb-the-show-24-xbox-series-xs/9NM9V6FQXPDX

Xbox One - https://www.xbox.com/games/store/mlb-the-show-24-xbox-one/9NKDP7GXQWFS

The triangle symbol normally means the system hasn't detected an active license for the game. Are other games also displaying this symbol?

Best regards.

Hello!

Hope you are well. I'll be glad to assist you.

I'm sorry you're experiencing these issues.

If you have the possibility, please check if the problem is the same using a different account.

Best regards!

Hi Putney C. My name is Kyle and I'm an independent advisor.

MLB The Show 24 hasn't been added to the Game Pass catalogue just yet, it will be added later today. Please try again in a few hours.