Halo reacn installed but won't launch?

Games Halo: The Master Chief Collection
1

Recently installed halo reach on my Xbox 1 but cant launch it…what am i doing wrong?

2

Do you have mcc? Never mi d.

3

Yep

4

Any sort of error when trying to launch? If not try to restart mcc completely and then the xbox if still not. My last resort would to be uninstalling Reach then reinstalling the whole collection