Converted survival worlds dont tick - time frozen

For the Minecraft Better Together version:

Two of my survival worlds that I synced have become stuck in time?..

The two worlds that I synced from Xbox One Edition were working normally at first, but after a few days of playing on them, it seems they froze up.

Things like daylight cycle, weather, and passive mobs are moving and working like normal - but everything else in the world seems to have stopped. Farms aren't growing (i.e. sugar cane, pumpkins, wheat), mob spawners aren't spawning any mobs (zombie spawner, skeleton spawner), there's a lack of hostile mobs at night, and villagers will not pick up items for willingness (carrots and wheat). I checked the settings for the world and they seem normal. The only thing I can remember changing is the difficulty, from Normal to Peaceful, then back to Normal again. I don't think this caused the glitch, but I could be wrong. I haven't changed any other settings in the world.

Thank you!