Hi
I have the same issue. Was playing local split screen and the game crashed. I can't open the world anymore. I tried copying it over normally and with experimental mode and both didnt help.
A shame to lose 5 months so I hope Mojang can fix this. The extrmely poor performance is already inexcusable and now save games are at risk. I was tempted to buy a realm and the pc version to see if I could copy this over to my pc and play with an editor but there is zero chance I am paying Mojang anything else.
Thank you Dylan for the tip. I turned off the wifi connection and I played for 4 hours without freezing. The lag is still there but at least I can play.
Top ways to get your Minecraft v1.9 to freeze on the Nintendo Switch (which are new to v1.9):
Adding players in multiplayer split screen and spreading out so you are 500+ blocks apart (this also drives down the FPS and lags terribly since the patch to v1.9)
Swimming has a very high change to freeze
Interacting with inventory items
Interacting with chests / anvil / enchanting table etc
As an extra special bonus to all of these freezing and reloading is that when Minecraft is loading up it seems to load your character before you can see / control so if you are near any monsters or in water you will join the game dead and often not exactly where you last froze since your character may or may not have last saved close to it.
Same problem for me. On my large survival save (200mb) its unplayable. Cant go 10 minutes without freezing during autosave.
This also happens on the switch. Would love to see it fixed.
I signed up to post on this as well. My 200mb save file is now unplayable in multiplayer splitscreen. The games constantly freezes while autosaving and needs to be reset. We couldnt play more then 10 minutes without having running into this and it didnt happen once in the prior version.
I've played at least 100+ in game days with a village close to my spawn point (enough time to buy >750 emeralds, redesign the whole city for safety and add multiple buildings) and I had a patrol spawn very soon after the 1.11.x patch was released on the Nintendo Switch but have seen none since then so it feels like something isn't working too well. Are they really supposed to be this rare?