Similar issue for me. Mine's also a world created in 21w44a but nearly every chunk regenerates. I've used up an entire unenchanted diamond pickaxe digging a tunnel that totally vanished after saving and reloading. There's a wall near my spawn (part of a village) that I've torn down five times while testing this.
Seems that it only affects destroying original blocks, though. If I put down a piece of cobblestone and save/reload, it'll keep that, even if the wall next to it regenerates. If I move it, it'll stay moved.
Can upload my world on request if anyone wants, but I wanted to confirm this.
WM95
Similar issue for me. Mine's also a world created in 21w44a but nearly every chunk regenerates. I've used up an entire unenchanted diamond pickaxe digging a tunnel that totally vanished after saving and reloading. There's a wall near my spawn (part of a village) that I've torn down five times while testing this.
Seems that it only affects destroying original blocks, though. If I put down a piece of cobblestone and save/reload, it'll keep that, even if the wall next to it regenerates. If I move it, it'll stay moved.
Can upload my world on request if anyone wants, but I wanted to confirm this.