Hi,

started freezing together, leaving large blocks of ice in the tray.

Make sure that they are freezing together or is the icemaker leaking/over filling causing them to be stuck together.

Cubes melting and freezing back togther:
- cold control staying off too long
- high temp spike in derfost mode

Water leaking into the bin causing the cubes to get frozen together:
- icemaker
- fill valve
- hollow cubes

Would have to be investigated.