I was autocrafting some hefty Mekanism components, and the server crashed. Once the server came back online, one chunk in my base was corrupted, wiping my storage drawers and removing anything related to AE2, and corrupting some EnderIO conduits. It also corrupted all of the Tinker's Construct benches I had there, and the Immersive Engineering workbench.
Optifine, Vanillafix, and fullscreen windowed borderless for minecraft.
I have no earthly idea where to start on a fix. I recall the server having issues with mekanism autocrafting, but also that a handful other players had found a work around that prevented the majority of issues.
It happened 5/10/2020 around 1:53 AM EST
Unsure of the exact steps. I was autocrafting an Ultimate Induction Provider via AE2 autocrating.
Unsure of an exact coordinate, it is the chunk in which my primary /home teleport is located.
My client didn't crash during this.
(After posting this i'll be unavailable for awhile, gotta get that beauty sleep, i'll be on sometime after 12:00 noon EST)