When I try to save and quit to title in snapshot 17w16b my game crashes

Snapshot 17w16b
-I am hosting a LAN world on my pc cheats on 1.When I press "Save and Quit to Title my game stops responding.
2. After 5 - 10 minutes my game crashes.
3. Sometimes I lose about 10 minutes of my save when it crashes although this only happened once out of 5 times.
Thankyou