Saving/Loading not working in Emulation

[EGAMatsu]

(Using Mednafen) When you save/load a world, there tends to be an error where it did not load right and chuncks are corrupted, its not bad on flat maps, but its awfull on normal ones.

[thisisauser9]

Can confirm this happens, not only does it corrupt chunks but also corrupts some blocks, I made a save with a basic wooden house and a gravel path leading to some ocean, the wooden house appears to be loaded fine however basically the path is rather corrupted, blocks are replaced, missing, a weird pattern or a plain colour that is z-fighting. Also it seems to only happen after you re-launch the emulator.

Player-placed blocks being corrupted:

Chunks corrupting: