Following the update on July 20, my large survival world (440 MB) now requires a sync before opening and appears gray in menu without the saved game screenshot. The world begins to sync and then the game freezes. After about a minute the menu music begins playing again and the game crashes, taking me back to the Xbox dashboard.

Other worlds are unaffected, but several large worlds are experiencing the same issue. I was able to play and save the game yesterday (7/22) for the first time since the update but have not been able to reload since exiting and saving.