Latest update broke the game.

All 360 games right now, mate. Not reading the DLC-stuck because can't load any save files. Latest xbox update broke it.

They just broke the recording with latest update. This looks the Welcome of the new console and end of so called powerfull console. Please fix this.

I will try to help you. Did you try to make a clear cache as soon as the console was turned on? By standing for more than 10 seconds on the front button of the console until it goes off. This manipulation solves a lot of problems. After that doesn't work,
only support when they're available can help.

"I have tried restarting it, resetting it, offline update and factory reset. Even the factory reset didn't work."

If you are using wired ethernet cable to connect your console, you must disconnect it prior to doing a Offline System Update (OSU) via USB.

Power cycle your network hardware and try Online Factory reset again and choose the Delete everything option.

System updates solution has further details.

Are you in the insider program? If you are that’s the issue it isn’t your network the latest insider update broke nat types, I reported it as a problem and hoping it’s fixed in the next update