Issues with errors when launching the save file software

[LemonT]

My game save has a playtime of over 3,000 in-game days. I’ve poured so much effort into this save and can’t bear to give it up. However, after the last few updates, I can no longer load it—every time I try to launch the save, the game crashes immediately, followed by a message saying "The software has closed due to an error."

At first, I thought it was because my old Switch couldn’t handle the large amount of data from such a long-running save. But the same issue persists even after I switched to the brand-new Switch 2. I sincerely urge the developers to fix this problem; this save means a lot to me.

[Kalimari]

If it's for a specific world, have you tried deleting the most recent save/rolling it back? I've had a similar thing happen and that fixed it for me